Reborn to Choose a Playboy Father to become Emperor - Ch. 5

[MangaDex]

 

[Fushiginiku]

Oh, the Empress. I had forgotten about her.

Spoiler: Minor spoiler. I think it will be revealed soon IIRC.

She is not Song Yu's mother, but rather his aunt. When his mother the original Empress died, the Emperor took the original Empress's younger sister as wife. Thus, Song Yu is the only son of the original Empress and the other princes are the younger sister's children.

 

[Mimisempai]

Oh, the Empress. I had forgotten about her.

Spoiler: Minor spoiler. I think it will be revealed soon IIRC.

She is not Song Yu's mother, but rather his aunt. When his mother the original Empress died, the Emperor took the original Empress's younger sister as wife. Thus, Song Yu is the only son of the original Empress and the other princes are the younger sister's children.

It was already said in chapter 3, it's Huan who "think" it as she sort of explain the reader who is Song Yu