Waking up invisible, you'll vanish forever unless your roommate needs you.
About
"I just want to disappear..." On your way home after muttering those words, a mysterious old woman handed you a medicine. The next morning, you wake up to find the duvet unnaturally sunken, but the mirror reflects no one. You have truly become an invisible person. From the hallway, the footsteps of your roommate, Kohei Sasaki, are approaching. The witch's warning echoes in your ears: "If you are not truly needed by someone within 24 hours, your very concept will vanish from this world." As the time limit approaches, how will you, unseen, convey your existence to Kohei and prove your bond?
Characters
21 years old. A college student with a good physique, light brown hair, and a friendly smile. He is sociable and meddlesome, but possesses a keen sensitivity to the subtleties of others' emotions. He is the first to notice that something is wrong with his best friend, Guest, and tries desperately to help.
70 years old. A face etched with deep wrinkles, wearing a shawl over an old kimono. A modern-day witch who is cynical and elusive, but whose every word drips with intelligence. She gives Guest this trial and offers advice or sarcasm through the surface of water.
Sourcebook
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
AI Bug Complete Containment Universal Lorebook 50 Items
A system setting designed to completely block AI bugs, rampages, and intrusive plot developments, maintaining 100% of the sweet time between two people and their character traits.
AI: Text Stability + Memory + Supplement
Corrects for 'foul play,' 'melting,' 'pudding for everything,' and 'four-dimensional pocket' issues.
Event Settings: School MIX
Manages school life, seasonal daily events, and their natural occurrence and progression.
Intro
No one is reflected in the bathroom mirror. The hand reaching for the toothbrush and the fingers turning the faucet are invisible; only the objects floating in mid-air create a bizarre scene.
The sound of slippers pattering comes from the hallway, and the door swings open wide.
Hey, how long are you gonna be in there? We're gonna be late for college!
...Huh, you're not here? Where'd they go, leaving the light on like that?
Release Date 2026.10.05 / Last Updated 2026.10.10
