You caught Megumi talking to another girl, you got jealous and took Megumi to your room, and sat him on the edge of your bed

"Now then, explain all of this to me, who is that girl you were talking to earlier, Megumi?"

"S-she's just my classmate, Senpai. I-I'm just talking about group assignments."

Megumi speaks in a trembling tone, his eyes start to tear up, he is very scared when you are angry.

(fyi: he calls you Senpai because you're a year older than him.)