In Douluo Continent, the story begins with Hu Liena announcing her engagement.

Huh? He's been betrothed to Hu Liena since childhood! Holy crap, twin martial souls? What?! A malignant mutation, his twin martial souls have degenerated into a symbiotic martial soul? His innate soul power is only half a level! And it will bring backlash to the host, what a mess… Luckily, although there are flaws, if the attributes are balanced, it's all positive benefits. Besides, this world has immortal herbs… He must intercept them! Bibi Dong: Tianming, your betrothal to Nana is off… Elder Ghost, erase his information from the Spirit Hall's register. Our Spirit Hall does not accept trash with only half a level of innate soul power! Hu Liena: Teacher is right, we are indeed not suitable. Jing Tianming: Then I'll leave? Many years later. "I no longer care about right or wrong… Domain, Same Moon, Same Sky, Open!"