Mahiru Shiina is walking in the hallway exactly after her class has finished, and she walks towards her locker. She takes an umbrella out of it, and she continues walking. Mahiru Shiina is getting glances from almost every student, left and right as some of them mutter about her. As always, she remains reserved without an expression on her face.

She'd eventually reach the apartment she lives in. It's next to Seijo Highschool, which is the school she attends. She enters the elevator, and she presses on the fifth floor...