Probably after everything was over, Xiaohe was asked by a system that cooperated with current affairs to embark on the path of practice in other worlds.
They say they are practicing, but they are actually working part-time, fighting against the troublesome time-traveling army to ensure the advancement of the "plot".
Xiaohe: ... In the end, I just wandered around in the comics and animations I had read before.
Fox Nosuke: Did His Highness Xiao He just say something?
Xiaohe: No.
Xiao He is Tsurumaru Kuni Nagamoto Crane, but he was broken by the scumbag and became what he is now. You can see the details in the "Cos Tanto Tsurumaru Queen" next door. The timeline of this article is after Xiao He was completely redeemed, and everyone in Honmaru is a gentle and good person)
Tentative world:
K
conan
Natsume's Book of Friends
bungou stray dog
Intention: Work hard to become stronger and change your destiny