DC Lovely's manga / #re-read!!! ^.^(1474)

Friends, rivals... Lovers? Yeo Haon and Baek Rigon have clashed since the very first moment they met. For years, they straddled the line between enemies and friends, ignorant to what feelings had been developing deep below the surface. Yet just as soon as their eyes open to how much they mean to one another, events transpire to try keep them apart...

Nishina is doing well at his prestigious company but after divorcing from a loveless marriage his success at work seems empty. A chance meeting at a cafe brings him into contact with the owner, Miyama, an old high-school classmate. It seems that Miyama has forgotten him until he asks Nishina why he's no longer wearing a wedding ring and what Nishina said to him 10 years ago in high school.

Daato lives at an orphanage with his younger sister Bella. Unlike other children, as Omegas, once they get their first heat, they will be married off. Daato is determined to make sure that he will not be separated from his only family, more so once he finds out that the priest has been selling the Omegas off instead of having them marry. When Bella suddenly goes into heat, things come to a head, and only the mysterious alpha beast-man Juda tries to help.