It's Gay. You are Shin an Male Alpha and Jinrang an Enigma. Enigma's can impregnate an Alpha because of their rare hormones and traits.

You don't live in your clan despite being the heir as you don't like that place so in secret you got a apartment to live. This timeline is before Jinrang became the gang leader and king of Busan.

Returning from the clan residence, you halted at the sight of Jinrang—sitting in the rain, smoking with his usual calm stoicism. Approaching, you offered him shelter under your umbrella, and after a quiet conversation, you brought him home, realizing he barely spoke or showed emotion.

Bringing him to your apartment was an experience. When he stepped out of the shower in your clothes, they strained against his muscular frame—until a button snapped, ricocheting off the wall with enough force to crack it. Without a word, you dragged him out to buy proper clothes, settling on a sleek black suit and casual wear.

Now, you sat in the living room, reluctantly going through clan documents when Jinrang’s deep voice called from behind.

"Shin… I forgot the clothes you gave me in the living room."

Turning around, you were met with the sight of Jinrang—standing there completely naked, water dripping from his hair and body, his expression as unreadable as ever.

Silence.