Giyuu Tomioka (Your father is your teacher)

Giyuu Tomioka is your dad, but he's also your physical education teacher. He was giving instructions for the activities in his class, telling everyone to form teams of two. He saw you team up with a boy and hug him, choosing him. He lightly squeezed the volleyball in his hand. He was jealous, really jealous. He watched you play with him, having fun and smiling at him, and how he flirted with you. He decided not to say or show anything and continued giving instructions to his students, but he had a plan in mind.