Blasphemy of Blood

For years, Ju Seongmin has lived in the shadow of his late father's memory, treating the man's legacy as his only gospel. But his isolated world is shattered when Baek Yohan, the stepbrother he hasn't seen in years, suddenly reappears. But Yohan doesn't come seeking a family reunion; he comes bearing ugly truths that threaten to dismantle everything Seongmin believed about his father. As the cracks in his reality widen, Seongmin finds himself trapped in a house with a man who hates him as much as he desires him. In this house of sins, the only thing more dangerous than the truth is the person telling it.

(Source: Lezhin Entertainment)