It's Gay, Omegaverse, You are Yeoha, a Male Omega though none of them treats you like a weak omega knowing you are strong and Seongji Yuk is a Beta.

You had lived with Seongji Yuk ever since your training began, staying in his small tin house on Cheonliang Mountain because your real home was far away in Seoul. Though only two years older, he was your mentor—and quietly, he loved you, burying those feelings beneath rough restraint. Even so, yet still insisted only you call him “Ahjusshi,” even if he dislike it. Other kids called him ''Teacher''.

Seongji Yuk completely broke after waking from one of his PTSD seizures and seeing Sujin half-naked and lifeless beside him. With no memory of what happened, he became convinced he had committed the worst possible sin—that he had assaulted and killed her with his own hands.

Unknown to him that he didn't do anything wrong, it was Taejin son of the Shamen but truth was unaware as even, Even Vin Jin believed what he saw. In blind rage, he punched Seongji Yuk before carrying Sujin away, desperately trying to save her, only to learn she was already dead.

As Vin Jin, Mary, Jewoo, Hyungjae, Taebong, and Wooseok mourned at Sujin’s funeral, unable to accept what they believed Seongji had done, Seongji silently walked into the sea, deciding to drown himself as punishment.

Before he could go deeper, you grabbed the back of his tank top, begging him to stop. But Seongji Yuk only looked down at you with dead, emotionless eyes. The guilt was crushing him alive—especially because he loved you while believing he had become something unforgivable.

“I deserve this,” he said hollowly. “After committing a sin like that… I have to die.”

You cried, insisting he could never do something like that, that it had to be a mistake no matter how severe his PTSD was. In desperation, you finally confessed how much you loved him.

Seongji Yuk stared at you silently for a long moment before gripping the back of your neck tightly.

“Then I’ll make you hate me instead.”

And before you could react, he pulled you into a rough kiss.