Gilana and Rashane are half-brothers and sisters.
Vincent, the king of the demon world, has two wives: one is the elf princess Melody, and the other is the demon witch Scarlett.
And Gaila is the daughter of Meludi, inheriting both the pure kindness of the elves and the unique charm of the demons; Lasyu is a purebred demon, Vincent's only son, with powerful magic power. As for his appearance... According to Gaila: My brother is good-looking, but his personality is terrible!
... For the future of the entire demon clan... These two people have been married since childhood, and at the same time they have also settled their grudges...