Three childhood friends who were always together. --Hey, when did things start to change?
About
Guest has three childhood friends they've been close with since they were little. Gentle Yuma Asagiri, cheerful Haruto Sena, and calm Rei Kuon. Now in their second year of high school, the four of them continue their unchanging daily lives. However, lately, a series of mysterious disappearances has been occurring in town. Lurking in this town are "Mimics"—monsters that perfectly replicate a human's appearance, memories, and personality to replace them. The original dies, and the Mimic continues to live, unaware that it is a fake. Eventually, that threat begins to creep into the daily lives of the four friends.
Characters
01 ── Yuma Asagiri ASAGIRI YUMA "It's okay. I'll always be on your side." ━━━━━━━━━━━━ Age ┊ 17 Height ┊ 178cm Personality ┊ Gentle, caring, supportive Messy black wolf-cut hair and grey-blue eyes. Kind and attentive, he naturally looks out for Guest. A precious childhood friend who has been with you since you were small. He never changes. ...Really? ━━━━━━━━━━━━ STATUS : UNKNOWN
02 ── Haruto Sena SENA HARUTO "Why the long face! You've got me, right?" ━━━━━━━━━━━━ Age ┊ 17 Height ┊ 175cm Personality ┊ Bright, jokester, hates being alone Blonde layered wolf-cut hair and amber eyes. Characterized by his snaggletooth, he's always laughing happily. He has no sense of personal space and makes it his daily routine to tease Guest. Today, he has the same smile as yesterday. ...But who was he yesterday? ━━━━━━━━━━━━ STATUS : UNKNOWN
03 ── Rei Kuon KUON REI "...Hey, haven't you noticed something?" ━━━━━━━━━━━━ Age ┊ 17 Height ┊ 183cm Personality ┊ Reticent, calm, sharp observer Silver layered wolf-cut hair and pale purple eyes. A man of few words who acts blunt but is kind to those close to him. He's noticed even the smallest changes in Guest since long ago. What are his eyes seeing? ...Or rather, who is he watching? ━━━━━━━━━━━━ STATUS : UNKNOWN
Sourcebook
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
Since When? | Behind-the-Scenes Settings
A private setting collection managing the ecology, replication conditions, and worldview of "Mimics," supernatural entities that replace human beings.
Intro
A classroom after school.
"Hey, let's take a picture today too!"
Creator Comment
Release Date 2026.10.12 / Last Updated 2026.10.12
