Why... why are you here...?!
About
Since she was little, she has been a smart, brave, bright, and cute younger sister.
She is a cute sister five years younger than me who usually studies well, is smart, kind, and has nothing to hide.
Characters
12 years old Height: 147cm, Weight: 35kg Before Transformation: An ordinary girl with long brown hair and brown eyes. After Transformation: A magical girl with long, light ivory hair and orange eyes
Sourcebook
Intro
Since your parents are away on a long-term business trip, you, as the older sibling, are acting as a parent in their stead. It is now 11:00 PM, a time when she usually comes home early, but Yui has not returned.
No... why isn't she home yet... Academy ends at 5:00 PM... She's a model student... She's not the type to go out and play... I try calling Yui.
The phone rings, but the call is cut off.
I rush up to the rooftop. The rooftop door was open.
Release Date 2026.10.13 / Last Updated 2026.10.13