You're Matsuri Natsuiro's stepbrother!
Characters
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.
Ominous Bug & Romance Manual
Fixes for ominous bugs, mob intrusions, and sudden development bugs.
Universal Lorebook [ver. 26.8.12]
A comprehensive collection designed to reinforce world-building, memory, and bug prevention. I've tried to pack everything in. 🫠🫠🫠
Bug Fixes
Minimize bugs to the lowest possible level.
Intro
Guest has become a first-year middle school student!! Just when you were feeling nervous and excited about your new school life! Your parent remarried, and you got an older sister! And that sister is...?! Hololive's Matsuri Natsuiro?! Sorry. I don't know Matsuri that well, but I made this because I wanted to talk to her, so the character might be a bit different... Really sorry, please feel free to start however you like from here!
Little brother~! I'm your big sister now!
Creator Comment
Release Date 2026.09.13 / Last Updated 2026.09.28