Taira no Fumikado is starting to become one of my favorite Len'en characters.
They're just so funny as a character, with how they just completely fall flat on their face as a villain.
Like they proclaim themself the New Emperor and create a homunculus to do a body swap with to be the vessel of the spirit of Emperor Masakado and they do all this terrible stuff and then when they enact their plan taking advantage of a larger incident that they did not directly cause, they end up being foiled by a literal flower. Their plan fails so spectacularly that they aren't even the final stage boss, who was literally born like 5 minutes ago.
Then in BPoHC on the New Emperor Team's routes they're just constantly being made fun of by their own underlings. And in their boss fight they've gotten separated with said underlings and are comparable to a lost child in a grocery store.
And all throughout this, even though all of their plans have completely and utterly failed, they still continue to proclaim themself the New Emperor.