Hypothesis: Moderate stress and hardship makes a yukkuri smarter/nicer over time?

Where did the Reimyu and Maricha outside gone to ?
Some things are better left unknown
I know! They became pet yukkuri and moved to new home!
Sometimes I wished I had your brain

Obliviousness is happiness, or something like that.

Not knowing and still the previous batch ... know those are their little sister? instead of same batch siblings. How do Yuu know!.

Same as how they know who they're speaking about even though everybody got the same name.

wow they gave birth to more shitheads

Holly shit, these things are absolutely clueless.

Little sisters know they are not the same.

So does anon, because parents are idiots. Denied that they made new little ones when they'd never directly been accused, and then said they're just born and have had nothing but stalk.