Elno and Baal are born into opposing factions, but through a twist of fate, they become brothers and face all kinds of challenges together. Then they both fall in love with the same girl. Elno and Baal enter a competition to see who is the strongest.
The girl falls in love with the strongest one.
Consumed by jealousy, the other brother gradually descends into darkness, accepting its baptism and becoming a true demon.
After marrying the girl, the strongest one lives happily with her.
But the brother who has fallen to darkness seeks revenge on the strongest one and kills the girl right in front of him. The two brothers, who once faced life and death together, become mortal enemies.
