Restless

Gyojin mistrusts all alphas and he despises the society that makes life difficult for omegas. He manages to find a job, but his superior is none other than Hyeono, his former classmate from middle school who was bullied because of a misunderstanding that involved him. They settled the misunderstandings, but Gyojin is now bothered because Hyeono started courting him. While trying his best to reject Hyeono, Gyojin's senior from college, the source of his trauma of alphas, re-appeared in his life. And this sunbae also turned out to be one of his superiors.

(Source: Kidari Studio, translated)