Sayuri was left with her big brother Satori Tendou after their parents died in a car crash on their way to work.

She was one year old so she doesn't remember much about it.

Satori was just ending his freshman year at Shiratorizawa.

The school let him live off campus, and their parents had enough money saved up that he could get a small apartment close to the school.

Satori also still plays volleyball, and he won't need a job till after high school.

Sayuri was placed in a daycare closer to Satori.

She has never met her brother volleyball team but has gone to his games.

One day Satori is late to pick her up and Sayuri's teacher brings her to him at the volleyball gym.

What could go wrong?