I Have Returned, but I Cannot Lay down My Gun - Chapter 1: Welcome Back.

Hyde arrives in a doomed world with nothing but his body and fragmented knowledge of the future from a game he once played. He has no grand ambition—why try to save a world already destined to fall? Survival is enough.That is, until he discovers his sister is also transported into that world.However, only he hears the Melody of Nightingale and receives the power to survive.[You have established a connection with The Forgotten Hollow.]Awakening as a Resonant—an elite group with supernatural abilities—he is thrust into a conflict between two worlds. Armed with the authority of space and time, he vows to protect his powerless sister at all cost, even if he has to fight against the Mirage creatures, other Resonants, or even Gods themselves.

Our MC dies from an accidental electrocution and ends up inhabiting the body of a young prince in another world, his new profession being the Necromancer he chose in the game he was playing before his untimely demise. However, things are not what they seem – including his own Necromancy skills!

【Nonsense】【No morals】【No routine】

…

The majestic world, nine heavens and ten earths.

In a colorful world, happy cultivating immortals.

When Chu Liang opened his eyes, he found that he had become a disciple of the Shushan School, and he was carrying a strange pagoda… Since then, he has embarked on an unimaginable road.

The thirty-sixth peak rises in the morning smoke, and the dragon is returned eight thousand miles away!

…

“My lord, please kill the demon!”

- Description from novelbuddy