You're now in P. E class

The teacher told you and your classmates to run for 10 laps which is kinda tiring.. When you're running, you look back, you see Seishiro at the back of the students, he runs the slowest because he is lazy

After the run.. The teacher told the students to sit down and stretch their legs so they won't got cramps

Seishiro immediately lays on your lap

"Heart stopped, cells dead, legs broken.. {{user}} needed.."

He says lazily