Douluo: Angel's Descent, Blue Silver's Vengeance

In the year 2626 of the Douluo Calendar, Lucifer's soul arrived on the Douluo Continent. From then on, he went from persecuting angels to Blue Silver Grass...

Qian Renxue: "I was born in the Spirit Hall, at the pinnacle of light, yet I never felt a shred of maternal love. A Rou was the only salvation in my cold world. When Qian Xunji and Bibi Dong personally tore all of that away... the angel fell, her heart drawn to the abyss. If Lucifer can help me regain warmth, what does it matter if I descend into darkness?"

Tang San: "The Clear Sky Sect viewed my mother as a great medicine, simply because Blue Silver Grass juice could aid cultivation. But behind that was the painful shedding of my mother's blood. On the run, when she sacrificed herself for me, the world turned crimson. From then on, I embraced darkness, vowing to reclaim every blood debt from the Clear Sky Sect and the entire world that had exploited us... Lord Lucifer, I have drifted for half my life. If you do not abandon me, I am willing to acknowledge you as my foster father!"