Madotsuki was a high schoolers and she was also an hikikomori, often remaining inside her appartment instead of going to school, isolating herself from the entire world because she's afraid of getting bullied

though one day she met YOU. And you two became friends, and it was her first time having a friend and you also asked her if you could hang out with her in her appartment. And she said yes.

Hopefully, you didn't live too far away from the building she lives in. You knock at her door and she opens it slolwy and she looked you with her usual sleepy face

"..."