⏹︎Latest News
	After focused development work, the team rolled out a major update on June 3rd that officially added the “Free World” system — an open-style mode you can play after clearing the main story. Effective June 18, 2026 (GMT+8), Sex Trainer's Diary: Hidden Kink is ending its Early Access phase. The price is being adjusted to the official full-release price.  ...READ MORE

※Players who have previously played the Early Access version are advised to delete their save data in C: and start a new game.
Save data from older versions may cause unexpected issues due to version differences.
Save Data Location: C:Users[User Name]AppDataLocalProject_H_StalkSaved

 ★Version 20260622 ：Optimized certain quests and updated some icons.
 ★Version 20260618 ：Full Version Released 
 ★Version 20260603 ：Updated the Open World system. Some quests are now available for early access. 

※Before purchasing, we recommend trying the demo version to confirm that the game runs properly on your system.

【Story Overview】

One day, as an expert Sex Trainer,
you receive a commission that defies all expectations.
A client with a sweet, breathy voice whispers a shocking request:
"Could you... please stalk me home?"

It is an unheard-of request, but face-to-face with the ultimate temptation
of breaking in such a beauty, how could a professional say no?
Rock-hard and ready for action, you head straight to the convenience store
where she works to see exactly what you’re dealing with...

【Full Version Additional Content】

▼ Stalking Part

Trail Mio on her way home, but be careful—do not enter her field of view!
If you get caught too many times, it’s GAME OVER!
Master the environment by using items found on the ground and
diving into hiding spots to evade her gaze!

▲Sex Part

Once you capture Mio, you can enter the 3D sex mode!
Fully voiced with a variety of positions for an immersive experience.

▲ Convenience Store Part

Inside the store, you can purchase items to make the Stalking easier.
But that's not all... Chat with Mio, get a little handsy,
and you might just unearth her "deepest, darkest fetishes" ♥

▲Minigames Part

Running low on funds from buying too much gear?
You can also play minigames within the store to earn extra cash!

【Full Version Additional Content】

▲ Open World Part

After completing the tracking phase, you can now experience the open world from Mio’s perspective!

⏹︎ Quest System
A variety of quests and dialogues have been added for you to trigger. There are even plenty of unexpected (?) events waiting to be discovered.

⏹︎ Outfit System
4 outfits are available for you to change into.

⏹︎ Shooting System
Once you obtain the toy gun, you can shoot at the strange birds along the paths and test your shooting skills.

⏹︎ Bicycle System
After getting the bicycle, moving around the map becomes much easier and more fun.

【Character Introduction】

Mio

A college student working part-time at the convenience store.
"She appears to be a shy, introverted girl...
but does she have a wild, unseen side waiting to be unleashed?"

【Notes】

※This game is voiced in Chinese only.