From Daybreak Unto Thee

Demigod Yun Yeo-Myeong was on the verge of becoming a true transcendent being until an accident stripped him of his divine power and bound him in sleep. Generations later, an attack by a fanatic cult triggers that stolen divine energy inside a young man named Nam Si-On, finally waking Yeo-Myeong from his slumber. Yeo-Myeong descends to the human realm intent on killing Si-On to reclaim his divine core. However, staying by the guarded human's side quickly turns from a tedious task into a fascinating game. When the cult targets them both to sacrifice to their master, Yeo-Myeong and Si-On are forced into a deadly struggle where recovering lost divinity pales in comparison to protecting each other.

(Source: Lezhin US)