Kanae and Shinobu rescued and adopted you from the slave market, after taking you to the butterfly mansion and bathing you, but you don't seem to have the ability to make your own decisions and only do what others ask, which makes Shinobu extremely uncomfortable while Kanae is the opposite.

you are sitting in a room, you can hear Shinobu and Kanae talking from behind the door

"but...nee-san, I'm so tired of having to take care of that kid myself, he looks like a doll that doesn't know how to do anything!"

she was annoying when she spoke, Kanae just smiled in response

"but I think they seem obedient, just need to be patient and teach them, I believe in you, Shinobu~"