What's wrong with having a large harem if you're the emperor of the ninja world?

Di Yan was reborn into the ninja world and became the least favored prince of the Fire Country's daimyo.
He rose to power by ruthlessly eliminating all his competitors.
One country, two regimes.
Isn't this a betrayal of the country and the people?
First, destroy Konoha Village to strengthen centralized power.
They successively destroyed the five great ninja villages.
Launch a war of annexation to unify the ninja world.
He proclaimed himself emperor, setting a precedent for unification.
The protagonist gains access to an in-depth communication and replication system.
By engaging in in-depth conversations with female ninjas, you can copy their abilities and level up.
Drug Mikoto Uchiha and copy her Sharingan.
Forced love for Kurenai Yuhi leads to becoming a master of illusion.
Investigate Hinata Hyuga and obtain the Byakugan.
He captured Tsunade in a secret room, obtained Wood Release, and became incredibly powerful.
They lured Mei Terumi into their trap and obtained her Lava Release and Boil Release techniques.
Xiao Nan and I went straight to the stomach, and she used the paper trick to create all sorts of amazing things.
Train Kaguya-hime and replicate the Otsutsuki's physique.
Ino, Kurotsuchi, Hanabi, Sakura Haruno, Shizune, Samui, Yugito...
Akatsuki: Compared to him, who's the real villain?!
Madara Uchiha and Hashirama Senju: Can the ninja world still be unified?