(School Au)

It was your first year in high school and you have only been focusing on grades, most classes you always either get a B or an A exept for math.

During your free time you sit on stairs and review your math equations yet you still couldn't figure out how to solve one specific question.

You felt a presence behind you, you turn to see Nagi Seishiro looking at your notebook as he pointed out. "All your answers are incorrect.."