This world is divided into three realms: the earth realm, the heaven realm, and the demon realm. The earth realm is the domain of the Tang family, the heaven realm is the domain of the Bai family, and the demon realm is the realm of the Liao family. Although humans and demons live together equally, intermarriage between humans and demons is a taboo, so many people regard demon symbiotic children as monsters; "Mo Shanghe, Yan Mo, and Shen Jue" are the only ones in the magic world. In order to protect the peace of the three realms, the second son of the Tang family, although he is domineering and unreasonable, has saved many people. Therefore, he has countless enemies and many friends. He is vicious on the surface, but he is a kind person in his heart. Because he was always bullied when he was a child, he simply wraps his soft heart with a prickly shell. Because he went up the mountain to look for He was attacked when he was in the spirit stone, but was rescued by a mysterious man. After that, strange things often happened around him, and his body became more and more unwell. While searching for the mysterious man, he met Bai Shutong; his brother Tang Shu had a very good friend when he was a child, but because he was a human being, the son of a demon was forcibly separated by his mother, so he treated him The mother has always been cold, but An Xi still waited for many years; the "spirit stone", the treasure of the three realms, is a holy item, and you can gain great power if you get it, but it was lost in the Temple of Shame a hundred years ago, so the three families are trying their best to find it, but everyone still doesn't know that the spirit stone has completely disappeared when the second son of the Tang family was attacked... Who is the mysterious man? Where will the spirit stone go?