A young high school detective, Shiba Ryusei dies by being shot in the head and is reincarnated to another world by GOD.

He lives in this other world with his memories of the former.

How will a Detective survive in the Douluo universe?

How will a Dragon Spirit holder survive?

The story takes place in Douluo Dalu one and the MC doesn't know the story of Douluo Dalu and he will be completely unaware of the story as he had never read the novel of Douluo Dalu.

Well, the pairings for this novel are mc x rongrong x oc.