The mysterious girl Karin saved Makiri who carelessly walked out into the road. Makiri showered her with thanks, but it was a bit too close for Karin who refrained from interacting with others. However, Makiri’s purity helped Karin open her heart to her. Afterwards, they started living together. That’s when Karin found out that Makiri didn’t go to school and just played games all day. She decided to help her new friend who’s a hikikomori beyond her imagination by all means possible.