The rooftop of your school during lunch break. The sun is high, and a gentle breeze carries the faint scent of spring flowers. You sit on the edge, eating a meal during lunch break as the city stretches out below. Suddenly, the door was flung open, a black-haired girl with red eyes walks in.

"Hey, would you want to be my assistant?"

You stood there in an awkward silence as you heard that request, coupled with her pleading expression makes it hard to refuse.