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Sex, Secrets & Used Tech — Unboxing & Full Walkthrough: Repair Minigames, 12 Heroine Routes, and Every Safe Code

By Sony

Sex, Secrets & Used Tech full walkthrough: five repair minigames, all 12 heroine routes and spawn times, Roxy shop priorities, and every safe code.

Chapters
Sex, Secrets & Used Tech key visual
Sex, Secrets & Used Tech key visual

Hey, conductor SONY is back! This time we're looking at an adult exploration / raising sim set around running a used-electronics repair shop. You play the owner of a second-hand electronics store: by day you fix phones, PCs and tablets for customers, but one repair at a time you start glimpsing the secrets hidden inside their devices — and get pulled into the city's underside. The game is wide-open, with 82 quests counting side content, and a cast that runs from the girl next door to a doctor, a cop, a teacher and a mysterious succubus. Great for players who enjoy slow exploration and collecting story.

Your home base: an unassuming used-electronics shop
Your home base: an unassuming used-electronics shop

1. Features

  • Intuitive UI — quest hints and character relationships are all on the dashboard.
  • Hakoniwa-style city exploration: different characters and events appear at different places and times of day.
  • The core loop is a "repair minigame" — different devices play out as different minigame types.
  • H-scenes use both Spine animation and a large set of static CG variations; everything is logged into the Memories gallery for replay. The Spine jiggle is, uh, intense.
  • Lots of content: 82 quests including side stories, and every heroine has her own story line and affinity system.

2. Story Background

The setting is a city whose public order keeps sliding. Mayor Veronica broadcasts daily, urging citizens to download the city's "Safe & Secure App." It sounds benevolent, but that overly eager tone always feels a little off.

And you are just the owner of one used-electronics shop in town. Life is ordinary — until a girl named Ivy walks in with a broken phone, and everything goes off the rails. You realize every phone and PC you fix hides a customer's secret, and those secrets slowly weave a net leading all the way to the mayor.

As the story advances, the city's districts open up one by one
As the story advances, the city's districts open up one by one

3. Goals

On the surface, your goal is to run the shop well and fix customers' devices. But play on and the real spine emerges: through repairs and exploration you push the main story, pursue each heroine, dig up the truth beneath the city, and finally confront the mayor behind it all.

Because the game is highly free-form, "being in the right place at the right time" is the single most important thing throughout. There are also quick time-skips and a magic weekday time-jump — use them well!

4. Gameplay Flow

The game runs on a "location × time slot" system. A day splits into morning, afternoon and night; every action (repair, explore, move) advances time. When stamina runs out or you want the next day, go home and sleep. (Note: sleeping is night-only — if it's too early you must skip a slot first.)

A typical daily loop: open the shop and take customers, fix devices, earn money while advancing the main story for quest data, take your clues to the matching location to push side or main quests, and unlock new districts and characters. As the main story progresses the city opens more areas, and new areas almost always bring new heroine routes — so revisit places often.

Characters show an avatar marker telling you where they are
Characters show an avatar marker telling you where they are

5. UI & Core Gameplay

Repair Minigames (the signature loop)

Taking a request starts a repair minigame
Taking a request starts a repair minigame

Taking a customer's device starts a repair minigame. Depending on the device and request, you'll play four types: "Product Repair" (disassemble and restore parts), "Adjust Frequency" (clear screen static), "Analyze Image" (some requests swap in a pair-matching puzzle), and "Audio Segment Fix." Every request clearly lists its reward and stamina cost; finishing a story-type repair also hands you the data or evidence from that phone, which is key to advancing side routes. If you read my earlier piece on Agent Saku's Secret Operation this will feel familiar — yes, this game is also by 78Games.

Product Repair: pull out the broken parts and fit the right ones
Product Repair: pull out the broken parts and fit the right ones
Analyze Image: claim territory to reveal the image
Analyze Image: claim territory to reveal the image
Adjust Frequency: tune the sliders until the screen is still and clear
Adjust Frequency: tune the sliders until the screen is still and clear
PC build: put each part back in its right place — order matters
PC build: put each part back in its right place — order matters

DIY builders will smile at the PC-assembly part: these days an SSD really can end up blocked by the GPU, so the order matters — get it wrong in real life and it's a meltdown.

Audio Segment Fix: match each waveform to its lookalike slot
Audio Segment Fix: match each waveform to its lookalike slot

If the minigames feel too slow, Roxy later sells an "Auto-Assist Arm" that auto-clears repairs — a serious time-and-money saver.

Stamina & Money

Stamina is the most important resource — almost every action consumes it, recovered by sleeping or items. Money buys items and pushes certain paid story beats. Always keep a little stamina and cash in reserve so you don't get stuck right before a key event. Repairs each take one action slot, but sleeping at Midnight can restore up to 100 stamina (after completing all of Miu's lab recovery upgrades).

Adult Scenes & Gallery

H-scenes combine Spine animation with a large set of static CG variations, all auto-registered into the gallery's Gallery and Events tabs after clearing. Story-type repairs often unlock the matching CG right after completion.

6. Walkthrough

Cast & Route Entry Points

Here are the main heroines and where to start their routes. Actual spawn locations and times follow the in-game state — if you're stuck, try a few different time slots:

Ivy
Ivy
◎ Where & When
Appears at the Coffee Shop on Wednesday afternoons.
★ Route Entry
The first girl you meet; the main story is tied to her phone repair request. Build affinity far enough and Ivy's Home opens up.
Maya
Maya
◎ Where & When
At the Streetcar Station front every morning and afternoon; when free at night she waits in the shop like a puppy (requires the park puppy-training event and buying the cosplay set in advance). Loves partying at the bar on Wed / Sat / Sun.
★ Route Entry
A justice-driven policewoman. In the mid-to-late game you pick up her dropped phone at the Streetcar Station — don't miss that CG.
Roxy
Roxy
◎ Where & When
You can buy and use the "Special Service Ticket," and it seems to sell to the shop owner alone.
★ Route Entry
The mysterious vendor by the stairs who sells spy gear and repair tools — also a key main-story ally.
Miu (Doctor)
Miu (Doctor)
◎ Where & When
Consultation hours Tue & Fri in Ward A; aside from weekends, when free she's in the lab.
★ Route Entry
Starts from the park's find-the-cat / feed-the-cat event; clearing it opens the hospital and her route.
Kathy (Police)
Kathy (Police)
◎ Where & When
In the afternoon and at Midnight she sleeps in the security lounge.
★ Route Entry
Appears at City Hall in the afternoon / Midnight. Break a PC first, then get the slacking-off evidence on repair; the Key Duplicator is needed mid-route.
Clara (Teacher)
Clara (Teacher)
◎ Where & When
Collects donations inside the Streetcar Station on Fri / Sat / Sun mornings and afternoons; cleans the park on Mon / Tue / Wed mornings and afternoons; hosts an orgy party at the park at Midnight on Mon / Tue / Wed.
★ Route Entry
Save up to make a donation first, then join the cleanup event to get clues and a bug — that unlocks her mysterious "club activity" 😀
Nephra (Succubus)
Nephra (Succubus)
◎ Where & When
Works part-time at the bar in the evening and at Midnight.
★ Route Entry
Shows up after the PUB opens. Top up your HP and prep items before the showdown — opening the event costs 60 stamina.
Irene (OL)
Irene (OL)
◎ Where & When
In Ward A at the hospital on Wed & Sat mornings and afternoons; on idle weekdays she takes out trash at the Streetcar Station front; at Midnight on Mon and Thu she turns exhibitionist, relieving stress in front of the Streetcar Station.
★ Route Entry
A late-game character at the hospital. Break her phone at the Streetcar Station first, get the cheating evidence on repair to advance; At the Streetcar Station flasher, a camera-destruction investigation event occurs.
Veronica (Mayor)
Veronica (Mayor)
◎ Where & When
You need the code first to reach her office via the elevator.
★ Route Entry
The main story's final boss — the whole campaign builds toward facing her. SONY's favorite onee-san, no doubt!
Emily
Emily
◎ Where & When
Plays with cats at the park on weekday afternoons; enjoys watching her husband's "atonement" at the park at Midnight.
★ Route Entry
The married woman — this game's key NTR target. Show her the evidence of her husband's affair!
Nira
Nira
◎ Where & When
You can rename yourself by giving her cake. She seems to appear in all time slots except night. Important note: NO lewd stuff!!
★ Route Entry
A bonus route: bring the Signature Strawberry Swiss Roll as a gift to rename her. Later, Ivy's TV-repair event takes you to the Oblivion Hospital on a different timeline.
Mira
Mira
◎ Where & When
Interns at City Hall on Sat & Sun; you can meet her at the bar in the evening and at Midnight.
★ Route Entry
The girl at the bar — the legendary lewd streamer "Honey Milk." Pick up her phone and don't give it back to trigger her side route.

Making Money (repair jobs)

Money mostly comes from repair requests. The table below lists the reward and stamina for each repeatable "general request," plus the "reward ÷ stamina" efficiency — handy if you're grinding cash:

BEST
Office PC Build / I Need to Prove Myself
43Reward ÷ Stamina
DevicePC
MinigameProduct Repair
Stamina35
Reward1500
Adjust Frequency
38Reward ÷ Stamina
DevicePC/Phone/Tablet
MinigameAdjust Frequency
Stamina25
Reward960
Crushed Tablet
27Reward ÷ Stamina
DeviceTablet
MinigameProduct Repair
Stamina30
Reward800
Defeat the Ad Virus / My Family
25Reward ÷ Stamina
DevicePhone
MinigameAnalyze Image (Adv.)
Stamina40
Reward1000
Automatic Shutdown / Defeat the Ransomware
24Reward ÷ Stamina
DevicePhone
MinigameAnalyze Image
Stamina30
Reward720
Dropped and Broken Phone / Forgot Password
20Reward ÷ Stamina
DevicePhone
MinigameProduct Repair/Analyze Image
Stamina20
Reward400

My advice: when you have stamina, prioritize "Office PC Build" — 1500 net per job, best value. If stamina is tight or you need quick cash, take the "Adjust Frequency" series. Advanced Analyze Image pays well but is both stamina-heavy and hard, so it's not worth it for pure money. Pairing it with Roxy's Auto-Assist Arm saves a lot of time.

Roxy's Items (stairwell vendor)

Roxy's stall is the most important item source in the game; almost everything she sells ties into the main and side routes. The three "Auto-Assist Arms" and the two "Decoder / Tuner" lines are near-mandatory:

ItemPriceEffect
Auto-Assist Arm (Phone)450Auto-clears phone repair minigame
Auto-Assist Arm (Tablet)800Auto-clears tablet repair minigame
Auto-Assist Arm (PC)1200Auto-clears PC repair (huge time-saver)
Bug500Plant a bug (Clara route + main bug mission)
Signal Jammer500Jam signals (Irene route)
Key Duplicator1900Duplicate keys (required for Kathy)
Video Decoder Lv.1/2/3800 / 1500 / 2300Auto-sets the parameters correctly (get all 3 to skip the Analyze Image minigame)
Tuner Lv.1/2/3800 / 1500 / 2300Auto-resolves part of the channel tuning (get all 3 to skip the Adjust Frequency minigame)
Special Service Coupon1200Triggers an H invitation
Submissive Puppy Set2600For Maya's "puppy play" event

Other Shops & Items

ShopItemPriceEffect
Coffee ShopCat Cookie130Stamina +10 (also for the cat quest)
Coffee ShopCappuccino350Stamina +50
Coffee ShopCocoa Milkshake480Stamina +35
Coffee ShopSignature Strawberry Swiss Roll1000Stamina +80; gift for Nira
Hospital (Miu's lab)Stamina Boost Lv.1/2/3900 / 1400 / 2000Max stamina +15 / +35 / +50
Hospital (Miu's lab)Airy Incense Lv.1/2/3900 / 1400 / 2000Sleep recovery +10 / +15 / +25
Hospital (Miu's lab)Mysterious Mushroom3600Max stamina +100; Miu route
PUBDance of Blazing Frenzy500For the succubus route (you can choose to get drunk when entering the restroom, stamina −60)
PUBGentleman's Playbook Vol. 101800Needed for Miu (doctor) route
HoboSecret Kung Fu Manual Lv.2 / Lv.34600 / 8800Combat power boost

Suggested buy order: get all of the hospital's "Stamina Boost" upgrades first (stamina really is that important), then Roxy's Auto-Assist Arms plus the decoder and tuner; late game you can basically skip the minigames.

Main-Quest Requirements (key costs)

The main story and a few big side routes hit money walls directly, so saving up first makes things much smoother:

  • PUB Staff ID: costs 5000, obtained after resolving the bar's women's-restroom event (your ticket into the restroom and to investigate the succubus). After the event the owner gives you a batch of liquor as a reward, used later in the succubus story.
  • Succubus' Syrup: costs 6000, a key pre-ending item.
  • Teacher route: triggers after donating 2000 three times.

Main Story Flow (with prerequisites)

The main story is a linear investigation. Below are the chapter beats in order, with "what to finish before advancing" (experience the actual scenes yourself):

  1. Opening & meeting Ivy: fix Ivy's phone (the repair tutorial). Afterward you see the secret photos on her phone, and the main story officially begins.
  2. Evaluation Passed: Ivy sends you to Roxy, the black-market vendor by the stairs. The Streetcar Station opens here. After taking the next day's phone request, a "Three-Day Observation Period" countdown triggers — just keep running the shop.
  3. The Coffee Shop at Midnight: advance to Midnight and Ivy takes you outside the Coffee Shop to prep an infiltration.
  4. Break-In Mission, get the drugs: after sneaking in with Ivy you must crack the safe — first find numbered objects in the shop (the 9 on the vase, the 3 on the banana picture, the 5 on the chili jar…) to assemble the code. Open it for the "coffee-packaged drugs," then make a key choice: who to hand the drugs to (see the branch below). City Hall opens afterward.
  5. Bar opens: unlocks two side routes — the succubus (costs 60 stamina + liquor) and lewd streamer Mira (help find her phone, crack the images hidden inside).
  6. City Hall speech & bug setup: you learn the mayor will speak at City Hall, with a three-day prep countdown. Buy bugs and gear from Roxy, plant the bug, and wait at Midnight for the mayor's bugged message.
  7. The Park at Late Night: following the message clue, go to the park at Midnight to meet the mayor and trigger the threat scene.
  8. Crack three cameras: you must crack the cameras at City Hall, the hospital and the Streetcar Station.
  9. Two parallel lines: split into "Leave It to Maya" and "Tail the Mayor / Party in the Women's Restroom" running in parallel.
  10. Final-battle prep: in order — talk to Roxy → get the "Succubus' Syrup" from the succubus (needs 6000) → see the doctor → save up enough money → fix the doctor's PC → gather the items → craft → final prep, then face the mayor.

Drug Event Branch (the Ch. 4–5 choice)

After opening the safe and getting the coffee-packaged drugs, the game asks whether to hand it to Roxy or Maya:

  • Hand to Roxy (black-market cash): she haggles over the buy price and, counting goods value, recon fee, infiltration fee and travel, pays you a five-figure sum (12000). Recommended.
  • Hand to Maya (cop story): at first she mistakes you for "illegal drug possession + bribing an officer" and moves to arrest you; after a scuffle and your explanation she switches to helping you investigate. For a money head-start the cash option is more practical; I felt the later story isn't affected.

All Puzzle Codes

I give up~~ just give me the answers, I'm done trying! (click to expand)
PuzzleLocationAnswerSource
Coffee Shop safeCoffee Shop (sneak in with Ivy)3952Clues: banana 3, vase 9, chili 5, 2 cats
Hospital codeHospital1962Math: 30×107 boxes, 20% broken, −606 return → 30×107×0.8−606=1962
Elevator PasswordCity Hall (to mayor's office)5516It's the mayor's plate — find her car in the Streetcar Station lot
Crack Ivy's Door CodeIvy's Home7403Get colors/shapes at her place, match the note by the park bin
Oblivion Hospital sealHospital (ghost event)8264Mahjong: 8-bamboo / 2-dot / 6-character / 4 players

Hidden Easter Egg: the Oblivion Hospital's mysterious note

If you click the note on the floor in the Oblivion Hospital, a string of baffling code pops up — it's actually hex encoding, and here's how it cracks:

Clicking the note on the floor in the Oblivion Hospital pops up this code
Clicking the note on the floor in the Oblivion Hospital pops up this code
① The hex on the note30 39 36 37 32 33 34 70 70 61 6d 61 65 74 73
② Decode to ASCII text0967234ppamaets
③ Reverse the whole stringsteamapp4327690

See it? It's a Steam store app ID!

It points to WorkNite's unreleased title, ~Ghost Training~ Purifying the Busty Earthbound Spirit.

WorkNite's new title ~Ghost Training~ Purifying the Busty Earthbound Spirit
WorkNite's new title ~Ghost Training~ Purifying the Busty Earthbound Spirit

If it's your thing, add it to your wishlist! Open the Steam store page and wishlist it

Endings

Your choices along the way decide the ending
Your choices along the way decide the ending

The game has two main endings: the normal ending (clear the main story, take down the mayor and turn her into a sow) and a BAD END (citizens mass-hypnotized by the APP). All CGs collected during play are logged to the gallery. If you want to collect every CG yourself, keep a save before major branches so you can go back for what you missed. You can also open all CGs via Nira at the Oblivion Hospital — very considerate! The Oblivion Hospital also has two illustrations not in the gallery, so remember to talk to the invisible man!

Every CG you collect is logged to the gallery
Every CG you collect is logged to the gallery

7. Impressions

I cleared the game in one 6-hour sitting right after getting it. Ever since I first saw it at an expo, I'd been waiting for the release news — and it finally came, TAT.

The art and gameplay are both genuinely high quality, and the whole story line is well rounded — it takes "fixing phones" to a whole new level (yep, fixing your way straight into trouble). A full 12 romanceable heroines is fan service galore, and on top of the usual CG variations there's a huge amount of animated artwork. The story beats all connect back and forth, so just following the main line keeps things moving smoothly; if you can't find a quest or don't know what to do, just check the Quest Info panel.

This time the main-and-side quest count hits 82 — seriously thick — and despite the big cast the art volume doesn't slack one bit. The one time I couldn't figure out how to trigger a quest, I'd already played to day 66 with no new quest showing up, before realizing the main story advances when Ivy comes to the shop herself on Monday morning. I panicked thinking I'd hit a bug, then frantically skipped time around the map and — ah — it suddenly resolved (ˊwˋ)y=~

The park's find-the-cat event pulls out a whole doctor side route
The park's find-the-cat event pulls out a whole doctor side route

Each heroine appears on fixed weekdays and time slots. The big map does mark where everyone is, but sometimes you just forget which day they show up. Looking back, I spent a lot of the late game time-jumping on the world map — if I'd checked the Profile panel more, I could probably have played faster.

My personal favorite is that sneaky, covert feeling. As a former "tool guy" myself, flashing ROMs, building PCs and recovering data are all must-have skills for a college nerd — there was real déjà vu, and this kind of hacker-sim vibe is honestly addictive. The same team's earlier title Agent Saku's Secret Operation was actually my first taste of this minigame genre, and this time you also get to tear down and build PCs and fix phones and tablets — so cool. The overall experience is well above the bar; SONY genuinely recommends it to everyone.

Bonus Gallery

A costume crossover with Succubus Heir
A costume crossover with Succubus Heir

A costume crossover with Succubus Heir! It caught me off guard — that title is on sale on Steam too.

Succubus Heir store page

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Game Info

TitleSex, Secrets & Used Tech
PremiseIn this second-hand recycling shop, every discarded gadget hides an unspeakable secret. You'll unlock privacy, manipulate intel, and even bend the women to your terms through "special deals"… a game of desire and control. Ready to make a deal?
LanguagesTraditional Chinese, Simplified Chinese, Japanese, English, Korean, Russian
Story★★★★★
Usefulness★★★★★
Gameplay★★★★★
Value★★★★★
SONY's playtime5.5 hours
Developer78Games, WorkNite Games
PublisherEternal Alice Studio

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Sex, Secrets & Used Tech
$16.99 USD

Price as listed on Steam · updated 11/09 10:41 (Taipei time)

Read the intro first: Sex, Secrets & Used Tech — Steam launch announcement

This has been your lewd-game express — see you next time!

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