Douluo Dalu: Yu Xiaogang Reborn, the One Who Knows Everything

In his twilight years, Yu Xiaogang lay on his sickbed, gazing out the window at the sky, his heart filled with nothing but resentment. He had devoted his entire life to teaching a Sea God and a supreme ruler of the Divine Realm. Yet Tang San had ascended to the Divine Realm with his wife and all his brothers, while his father, Tang Hao, became the Plane Master and his mother, Ah Yin, became the Core of Life. As the saying goes, a teacher is a father for life. Yet this master of theirs had received not the slightest benefit! Without Yu Xiaogang's Ten Core Competencies, without all his careful planning and instruction, Tang San would have been nothing but a country boy with Twin Martial Souls. How could he ever have become a god? He had poured out his heart and soul, only to be forgotten completely. The moment he closed his eyes, overwhelming resentment engulfed him. When he opened them again, he had returned to Notting Academy, decades earlier, to the time he first met Tang San! Through a river of time, he saw Tang San's past and present, and the future of Douluo Star. Who could have imagined that the Sea God he had raised was an utterly wicked fiend! In his last life, he gave Tang San every opportunity and all his knowledge, yet received almost nothing in return. In this life, he would take back everything that belonged to him with his own hands! Tang San's Blue Silver Grass could evolve into the Blue Silver Emperor. Why couldn't his Luo Sanpao transform into a Golden Sacred Dragon?! Tang San could become a god. Why couldn't Yu Xiaogang ascend to the Divine Realm and look down upon all living beings?!