Douluo Dalu 2: The True God King - Chapter 29: [DD2]:

Liu Ergou grew up in the village and studied medical skills with his grandfather. After his grandfather died, the responsibility of treating the villagers falls on him. But an accident bestows upon him an inheritance from his great-grandfather, which sets him on the path to invincibility!

Jian Ci is the light. An S-class Esper, his powers ripple with the warmth of a thousand suns, his smile a blinding beacon that draws humanity, and hope, to him like moths to a flame. He is the Sun, a magnetic force of nature, utterly unaware of the abyss that gazes back.Yu Xi is the dark. A shadow with skin, a man who walks through life with a silent, consuming emptiness, broken only by a singular, scorching singularity... Jian Ci.He is the Abyss, a dark constellation orbiting a single star, and his existence is now defined by the answer to one terrifying question.How far are you willing to go for him?Yu Xi’s response, spoken as clearly as a death sentence.“To hell and back.”This is the story of an impossible equation: Light + Darkness = ?It is a love that warps physics and morality, a descent into an obsession so profound it threatens to rip the very fabric of their world.Yu Xi knows their combination is impossible, a contradiction that should result in utter annihilation. Yet, with a quiet, terrifying devotion, he is prepared to burn the world, his own soul included, if it means securing his star.

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.