"This clan is Mister Human's Easy Place!"
It started with a declaration. Of course the yukkuri doesn't accept it easily. They talk about how the human is uneasy and foolish because it's uneasy to claim the whole clan for himself.
Three yukkuri stand to fight. Marisa, Myon and Chen. All three are quickly defeated. Chen is crushed while Myon is told to punish Marisa who's a scum.
Myon refused. Marisa is her friend and a good yukkuri so she won't punish Marisa.
Mister then explained, Marisa dared to stand against Mister who stands above the clan leader.
To the confused chief Patchouli, Mister explained how he can claim this clan passed down from Patchouli's mother and her mother's mother can be Mister Human's.
Mister showed his proof, the clan itself. He know that Marisa, Myon and Chen are council members, it's always like that.
He also know about the rules. Reimu will be slave and Deibu are treated as toilet. Alice will be accepted after they're castrated. Rare types will be put into house of wood where they will turn into sweets sweets. Scum will be executed with extreme prejudice and anyone who tried changing the rule is to be buried alive.
These rules is uneasy. The clan members wanted to take it easy with Reimu and the rare types. Alice also wanted little ones. Killing scum is also dangerous, last time Myon's neighbour got killed in mission.
But the rules are given by human. Actually, it's this Mister's grandfather. He had a pet Patchouli, the clan leader's great grandmother. Patchouli is tricked by a Deibu who wanted to be pet.
Patchouli is then entrusted an empty land where she can build her clan. Here, a new rule is set, Reimu is to be the lowest in the social class of this clan.
Later, Patchouli married a Meiling, but their children got attacked by raper Alice. This created the rule where Alice is to be castrated.
Baby Meiling became subject of bullying, so Mister decided it's best to gather the rare types and shelter them out of the clan. The candies are just payment for the yukkuri.
When Patchouli's grandmother is born, a lot of scum came out and they demanded change to the rule. Seeing the uprising, human decided to help and kill the scum. Unfortunately, many escaped and caused trouble to other human. This is where the rule and obligation to execute scum is born.
But Mister is different from his grandfather. He think his grandfather is a yukkuri lover and it sucks to be forced to follow his grandfather's rules. What he really wanted is abyuse, so now after he inherited the land, the rule will change. From now on, everyday is an abyuse day.