Dawn of the Titan

On a rainy night under a bridge, Old Chen takes in a wounded, amnesiac youth and names him Chen Mo. No one knows that this taciturn, repair-savvy mechanic is actually a Titan mechanical lifeform that fell to Earth and forgot its destiny. He is invincible in self-healing, understands all mechanical structures, and can summon blue light from his fingertips to repair anything, yet he willingly confines himself to a small repair shop, content with the simple life of the mortal world. Fifteen years of ordinary life are shattered when the Bureau's hunters descend, exposing his non-human identity and triggering a citywide manhunt. From prey to counterattacker, from ordinary repairman to the sole restorer of his kind, Chen Mo is forced out of his comfort zone, using his engineering body's unique combat style to break through, evolve, and transform in desperate situations. Human conflicts, Titan divisions, and deep-space crises follow one after another. He walks the line between humans and aliens, taking no sides, using his ability to repair all things to mend mech cracks and also bridge the divides and prejudices between races. From a single lamp in a shantytown in Jiangcheng to the dawn of rebirth on his home planet. Rust covers his steel body, but tenderness lies in his blazing heart. When the long night ends and dawn approaches, this fallen repairer will, with his own strength, usher in a new era of coexistence for two races. — Description from novelcodex.org