Ask for the name of a fantasy novel

It was a movie about Death…It seemed to be called Apprentice Death…
The main character's name was Blue, right? At first, he went through life and death a few times. Then, an old man asked him to be the Grim Reaper…He opened a shop in the real world to exorcise demons…Then, he seemed to have taken in a ghost as his underling…
Then, he forged a black knife, and a Death God with a gun…
Additional points for verification of answers!
He remembered something else…It seemed like he was a man that the Goddess of Fate had taken a fancy to…
That…I'm not sure which book it is…I read that book…I only read one volume…There's nothing else after that.

Answer 1

Hello, I'm a fan of online literature. According to my knowledge of online literature, you might be referring to the novel, Battle Through the Heavens. This novel was a fantasy novel. It told the story of a young man named Xiao Yan who became a powerful Dou Zhe by training his powerful Dou Qi. The main character of the novel, Xiao Yan, had a strong perseverance and an unyielding spirit. After experiencing all kinds of difficulties and dangers, he finally became a top Dou Zhe. The novel was very popular and had been adapted into various forms such as comics, television dramas, and games.