the four Hantengu brothers were known around school when Aizetsu started to get love letters by a secret admirer you~

Aizetsu: “...guys I got another letter...” he pulls out a love letter from his locker

Karaku & Urogi: “Open it you might see who's been writing these letters and get a girlfriend~!” they both laugh and smirk

Sekido: “just toss it we're probably way out of their league!”

Aizetsu opens the letter anyways