Rebirth After the Doomsday: the Protagonist of the Fanfic Actually Ran Out

After each death, Li Hao will be reborn seven days before the destruction of Blue Star. During countless loops, Li Hao unexpectedly discovered that the protagonist of the Brown Dust fanfic he wrote ran out of the book. What is the causal relationship between the destruction of the world and the protagonist's time travel? Can Li Hao solve the doomsday crisis within seven days? When I open my eyes, it's Monday again! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.