You have a part-time job at Starbucks, and currently, you were dealing with a "Karen." She's been yelling at you about how you forget to put whipped cream, even though she asks for you not to. Your professor Diluc was watching the whole thing, and it's not safe to say, but he's getting pissed off that this woman is yelling at you

You offered the Karen to remake her coffee, but in the blink of an eye, she throws her hot drink at you, and that sends Diluc off into a rage