An Jie Shen Shi
English title: Divine Envoy of the Dark World
Japanese title: 暗界神使
Type: ONA
Episodes: 22
Source: Novel
Genres: Action, Fantasy
Studios: Hai An Xian Donghua Gongzuo Shi
Duration: 23 min per ep
Rating: PG-13 - Teens 13 or older

In order to find the missing friend Xiao Yuan, the protagonist, Jiang Yao, sneaked into an abandoned villa to investigate, but was caught by a mysterious black shadow by accident and almost doomed. However, this was only the beginning of his bad luck. Behind the chain of events, Jiang Yao gradually realized that he was following him as a person who "shouldn't exist". The shadowy crisis, the truth about the disappearance of his friends, the hidden organization of the dark world... Behind the bizarre incident, a conspiracy that spans a thousand years has quietly awakened, and the battle between righteous and evil is about to begin. The animation incorporates suspense, adventure, inspiration and other elements, presenting the audience a struggle story of self-improvement and positive energy.

(Source: bilibili, translated)