I'll add a post for each doll desu! :)
1. Suigintou
She deeply desires her father's attention, a deep want for connection. She struggles very hard on her path, as it's difficult and none really understand her.
She can't have the carefree love her sisters have, she puts her search and want for father above her sisters and perhaps everything else.
This is why she fights, she fights for that want and that desire.
2. Kana-chan luvs Micchan!
(https://booru.kirakishou.com/files/fa6b220a07d8eb78bdbc08a0ecd23c11eee4dacc56d59016a0352fb4d0b7ed712.jpg)