A story of angels and demons, destruction and redemption. In his previous life, he believed that he would be a couple for the rest of his life, but he was betrayed by the woman he loved most, and his family was ruined, leading to a miserable end. But fate made him unbelievable that he was reborn, and with full of hatred, he turned into a demon and came back for revenge. Living every day between the pain of hatred and the pleasure of revenge. She, who also came from another world, followed him by accident and gradually learned about his suffering and situation. Inspirational to become a woman who can protect him from wind and rain and stand side by side with him, so that she can transform in crisis after crisis, break out of her cocoon and become a butterfly just to accompany you for a lifetime.