Cultivation of Immortality: Breaking Through the Sky

Avenge your brother and die together with your enemy. Traveling through another world, you meet your "partner" Coco and venture into another world together. He is the Supreme Lord of the Demon Realm. He has slept in a crystal coffin for thousands of years. Once he was woken up by a little girl, he would have killed her long ago if he had not seen her for fun. However, he was also glad that he did not kill her, otherwise, who would accompany him in the future. She hates chauvinistic people the most. When they first met, he wanted to kill her, and she hated him. But why is he always by her side in the days to come...