Reborn to Slay the God

Sora Gale and her cousin Yara Gale are chosen to bear the heir of the Mountain God. Winner becomes Goddess, loser dies. In her past life, Yara lost, dragging Sora down. Reborn, Sora remembers her past. She sees Yara's schemes, plots to make her fail. Forced into the Mountain God's valley, Sora discovers he's a man-eating monster. Sora slays the evil god, ascends to godhood, abolishes the cruel system, and rewrites her destiny.