Douluo Dalu: I, Born of Light and Darkness, the Sea God Pavilion's Holy Son

Long Mobai transmigrates into The Unrivaled Tang Sect, thinking he's just an ordinary orphan. But on his eleventh birthday, a Light Dragon Dagger activates Long Mobai's hidden bloodline, awakening his Second Martial Soul: the Radiant Sacred Dragon! At the same time, his First Martial Soul, the Abyssal Demon Dragon, evolves into the Dark Sacred Dragon! After reading the secret letter in the basement, Long Mobai finally understands. His great-grandfather is actually Mu En, and his great-grandmother is Long Xiaoyao's younger sister, Long Yeyue! … Electrolux: “Oh? This child embodies both holiness and evil. He's the perfect heir to my legacy!” Mu En: “My great-grandson is peerless in talent. He shall be the Sea God Pavilion's holy son!” Tang San: “Strange. Huo Yuhao is supposed to be the Child of Destiny, so where did this Long Mobai come from?” The Evil God: “Long Mobai is the successor I've chosen. Who dares compete with me for him?!” … That day, Long Mobai tore through the barrier and descended upon the Divine Realm. The gods thought the Divine Realm had simply gotten a new God King. But who could have guessed that Long Mobai would smile faintly and look at Tang San? “Gods have divine laws, and realms have their rules.” “Tang San, you broke the law and disrupted the mortal world in your divine form. It's time to settle accounts!” [Multiple heroines, takes opportunities from the protagonist group early on, turns against Shrek later, and settles accounts with Tang San]