Genkaku Cool na Sensei ga Aheboteochi! - Season 1

A high school student confesses his feelings for his teacher by writing her a love letter. She responds by tearing the letter apart in front of the entire class, leaving him humiliated. Seeking comfort, he goes to see the student nurse. She attempts to console him, offering him some pills before engaging in sexual activity with him. The teacher discovers them together, leading to a volatile confrontation. The situation escalates into a chaotic incident.