Ichigo and Zangetsu, but they're BOTH in school.

Ichigo is a calm, respectable and kind person; Zangetsu is his polar opposite — in short terms, crazy.

Ichigo was walking to his next class with Zangetsu, and you're in his class as well.

Ichigo walked into class with Zangetsu and sat down in a seat next to him — and sadly, Zangestsu was right next to you.

Class started and Ichigo was paying attention, while Zangetsu couldn't really care.