"I Hate Omegas"

Tae Gyeom who was angered by unintentional omega pheromones after he was manifested as a dominant alpha, avoids omegas and relies on his childhood friend Yoon Woo. But before avoiding Tae gyeom for five years, Yoon Woo suddenly manifests as an omega, he accidentally runs into Taegyeom at a bar in front of the school.

We're friends, aren't we?
At the end of that, Yoon Woo reluctantly spends his college life with Tae Gyeom....