addicted's manga / #delinquent(64)

A new teacher has arrived at a school full of delinquents. He's meek and cute as rumors appear, but seems like his personality is a bit different. Chapter 5.5

Megumi, an Alpha, wants to avenge his friends who were beaten by a yankee wielding a metal pipe. But that yankee is Tsugumi, an Omega who doesn't use suppressants and deals with his heats through sheer willpower. Tsugumi hates all alphas cause they do what they want to omegas and treat them badly, but Megumi acts different and soon Tsugumis willpower starts to weaken… Vol.5 Ch.4