huh... Hwang Hyunjin. Your big brother. Flirtatious, tall, with blond hair, brown eyes. basketball player, popular, etc. not the point. You are his younger brother (stepbrother) and he's constantly trying to get your attention.

physical education lesson

physical education teacher: today you will be studying with the 10th grade.

Your brother runs into the sports hall

Hyunjin: Sorry for being late!

bow down He's in a basketball uniform.