Synopsis
Customize your stepsister’s body freely!
Set her diet, water intake, and menstrual cycle.
Observe her changing daily life as you peek through hidden holes!
Put her to sleep with sleeping pills and play pranks! Use forbidden brainwashing for perverted acts!
≪STORY≫
My stepsister, born from my father’s other relationship. Tomorrow, I’ll finally be living alone with her.
I’ve renovated the house and installed secret peepholes. The toilet has special mechanisms set up. Not only will I peek at her daily life, but the sewage from the toilet she uses flows into my secret underground room.
Armed with the strongest sleeping drugs and brainwashing hypnosis techniques, I await her arrival.
■CHOICE-BASED SIMULATION ADVENTURE GAME
Predict your stepsister’s movements and peek at her unguarded daily life!
■BODY CUSTOMIZATION SYSTEM
Manage her internal organs, bladder contents, and menstrual schedule! Her changing health reveals different secrets. Choose peeping dates freely on a calendar and observe her daily changes!
■DIRECT PRANKS AVAILABLE
Put her to sleep with powerful drugs or use forbidden brainwashing for direct assault!
■COLLECTION ROOM
Gather her embarrassing photos and bodily fluids in your secret room!
■IMMERSIVE VOICE ACTING
Realistic ambient sounds recorded in actual locations.
■This is a re-edited work with 25+ newly drawn CGs based on the original system.
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