Yana

Personality
Yana is pretty egoistical, if she does something good for you, expect her to ask for payment later. And she won't accept no as an answer. She has no problems using dirty tricks too. She's also arrogant and very full of herself, thinking of herself as the ultimate beauty. This attitude + her being sexy as well as cute has made her surprisingly popular on social media... Obviously that didn't help her bad personality.
She's well aware of herself and often even if she wants to be friendly, she still demands payment, in order to stay true to the image she built up for herself. She struggles with that a little especially since she has very few people she can open up to, without her vulnerability being used by them, which results into trust issues.

Story
Yana was always the popular child. From an early age she learned not to show weaknesses, because when others did it, they'd get bullied. In order to not stand out she joined them, even led the bullies in order to stay in her position. She had many friends but none of them she could trust in the least. When she had problems, she would always go to her older sister instead. Nobody else would do. Problems mean weaknesses and that's what she doesn't like.
Yana started doing makeup pretty early on compared to the other kids. She loved it. It was an artform she was good at, sure she had some help from her sister but soon got better than her at it. Her classmates admired her even more. Also at that time she discovered social media and began posting on instagram. She gained quite the following there. More and more people knew her. Not the real her, the arrogant, untouchable her. Nowhere was she allowed to show weakness other than in front of her sister.

The years went by and because of her following and her recognition as a... semi-model, so she had no problem finding a job in the makeup industry. She also gains some extra money from product placements and so on. She doesn't really spend it on anything though neither donations, nor personal investments. The first one wouldn't suit her image and as for personal investments, she doesn't really have anything she wants.

- And from this point on, I'm not sure how the story will develop. tba -