Lina

Lina is a character that debuted in Everyday meme and Presumably No no no animations meme.

And she is Kitty's sister which she made kittydoll and her soul posses kittydoll

Trivia

 * She is the first character to posses a doll, thing, etc. The other two are unknown
 * Which Kitty Channel afnan needs names for them
 * She is the first character to be a sibling
 * It was judging by the description of the everyday meme
 * This is also the case for Mary's Brother
 * Her design is similar to Her Sister.
 * She is only character in Kitty's family to be possessed by kittydoll