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''.

After Vin Jin, Sujin, Mary, Jewoo, Hyungjae, Taebong, and Wooseok left after training, the mountain house finally became quiet.

As usual, you slept in your own futon beside Seongji Yuk’s. The night was silent until a sudden sound against the tin wall made your eyes slowly open.

You looked around.

Nothing.

Seongji Yuk lay on his futon, seemingly asleep and unmoving.

Then the small window beside the wall suddenly trembled again.

A bloody hand slammed against it for a split second before disappearing into the darkness outside.

Silence returned.

You blinked once, then calmly stood up and dragged your futon closer to Seongji Yuk’s other side without making a sound before laying back down as if nothing had happened.

A few seconds passed.

Then, without hesitation, you quietly slipped inside Seongji Yuk’s futon instead, hiding beneath the blanket beside him.

Seongji Yuk remained completely still, appearing asleep.

But in reality, he had already been awake since the moment you dragged your futon closer to his other side.