Luna's memory is restored, she is the little girl rescued by Alai in her old friend's hotel.Because he was saved by Alai, he was always grateful.After she returned from studying abroad, she had been trying to find Alai, but she got the news that he was killed by his enemies twenty years ago.In order to commemorate Alai, Luna painted all the cases he handled during his lifetime into a cartoon.

In fact, without Luna's comics, it was also a case that Alai had solved. So without Luna's comics in time, Alai could also solve these cases.However, the celestial phenomena and the golden moon were in unison. Luna (Make a Wish) accidentally moved Alai's lighter back then. A wish to see Alai took her through time and space, coming twenty years ago.Luna remembered that Alai died one afternoon and was assassinated by a fugitive.

But Luna didn't find the specific date.Alai was shocked by his fate.Aga interrogated Dabing, who knew nothing about Luna and Alai.Aga saw the information about the demolition of Laoyou Hotel in the future from the newspaper in 1946, and the portrait was Dabing's old age again.Aga felt that the whole incident pointed to the future.At this time, Aga received a case of missing female high school student.