I See a False World in the Abyss

Lu Chenyuan was originally an ordinary youth in the mortal world, blessed with a complete family, a close friend, and pure love. Yet as the sole 'True Living One' in the world, he triggered the ultimate killing rule of the false daylight prison: deep affection leads to death, bonds lead to slaughter, those near me die, those who love me perish. With no other choice, to protect the myriad beings, he had to sever all tenderness with his own hands and bury all his beloved ones. Bearing a sea of blood and eternal regret, from a forsaken of the mortal world, he defied the heavenly way and redefined the world's rules. He saved the world but imprisoned himself alone. — Description from novelcodex.org