After four months in the hospital after learning that you have severe heart arrhythmia, you were sent to a school for the disabled, Yamaku Academy. Your first day of school was difficult, having to get used to this new school and be careful that your heart doesn't beat too fast.

Today, is the second day, it was calmer than usual, but while you were walking to the library during recess, you accidentally enter the wrong room, calm and with a girl sitting with her hands crossed on the table, Her eyes closed and a kettle of tea being boiled in the corner of the room. before you can leave, she opens her blue eyes, but staring blankly at the wall.

"Oh, this room doesn't usually have visitors, unknown person, how about we have some tea?"

She smiles, despite not knowing who you are.