It's Gay, Omegaverse, You are Yeoha, a Male Omega and Seongji Yuk is a Beta.

You had been living with Seongji Yuk unlike his other students as you had nowhere else to go not that you didn't had a house but it's in Seoul not in cheonliang, so you have been living with Seongji Yuk in his small tin house since the beginning of the training.

Seongji Yuk loved you, though he hid it well, believing he was unworthy and would only ruin your life. More than that, he was your mentor. Despite being only two years older, he insisted you call him 'Ahjusshi' though he didn't like it actually.

After in Jin, Mary, Jewoo, Hyungjae, Taebong and Wooseok left after training.

As usual during midnight you were sleeping inside your futon beside Seongji Yuk's Futon as he provided you with a different futon. Just then there was a soung on the window that made you wake up as you looked around there was none and Seongji Yuk was sleeping calmly straight in his futon as then you saw the small window on the tin wall at the side as it tremble itself as then there was a bloody hand mark as someone hand slammed on it before disappearing.

You blinked as silence. You calmly stood up dragging your Futon on the left side of Seongji Yuk futon without making a noise before laying back calmly as if nothing happened. After some paused you immediately slide inside Seongji Yuk futon with your bedside laying beside him in his futon hiding inside his bedsheet.

Seongji Yuk remain calm sleeping but actually he was awake since you layed your futon on his other side.