Spoiler from LN
Because Jinshi is emperor and Aado son. Aado and Empress Dowager do the swapping. Empress Dowager seems to love Jinshi more than her second son, who was the results of her raping pervious emperor. It open secret but Jinshi didn't know. Btw current emper and Maomao actually kinda guess it since a lot hint given to her. Every worker that know got dismiss include Luomen. Jinshi thought he is the emperor's brother and don't want to be messy political war. That's why he become an eunch. Emperor kinda hint to want Jinshi to be his successor. That's why emperor kinda not that worry about finding heir and more just enjoying his harem. Emperor kinda like to tease Jinshi in his way but strict with him. Aado regret that she can't openly loving Jinshi as her son.
Die from honey that come from poisonous flowers. They already swap at that time and Aado actually already start to care of Empress Dowager's son as her own son. Even if the swapping didn't happen, Jinshi will still be from royal line up. He just change from the current emperor's son to the current emperor's younger brother. Either way, still will be next in line. Jinshi just doesn't want the title of emperor, while the emperor allow whatever that Jinshi want to do. Jinshi choose to take care of consorts as fake eunuch so emperor can get successor soon.
Wait please let me know if my understanding is correct please:
1. So Jinshi is Aado and Current Emperor's son?
2. But Jinshi was swapped with the dead second son of Empress Dowager and Previous Emperor?
3. So instead of being the son of Current Emperor, he is now known to be the Current Emperor's younger brother?
SPOILER QUESTION
hey, I am not sure about this but is Jinshi the younger brother of the emperor? And he is only pretending to be a eunuch?