I have added Yuki as an ArtFight character and wrote down a little more background, which gives some context to the events of the comic.
"Yuki grew up in New York in a strict household where achievement was expected and rarely questioned. She learned early to measure herself through performance and results, which carried her through medical studies and into psychiatry with a research focus. After completing her PhD through scholarships and sustained academic work, she secured a well-paying position at a psychiatric institution.
Reaching those long-term goals did not bring her any real contentment or satisfaction. On the contrary, she felt hollow and struggled to step outside of work or redefine her sense of purpose. Gradually, work became the only stable structure in her life, and Yuki developed into a full-fledged workaholic in a state of permanent burnout. Around this time she began suffering from chronic migraines and eventually drifted into a Vicodin dependency.
When nothing else helped anymore, she was introduced through an external contact to Alric, a Toreador vampire, though she did not initially understand what he was. Desperate for anything that would keep her funtional, she became his ghoul and experienced temporary relief through his blood, which quickly reinforced her reliance on him.
Months went by and she slowly lost control over her situation. Alric kept her close through dependency and expectation, feeding into her addiction and trauma, and required her continued cooperation in exchange for sustenance. He instructed her to provide confidential information about patients at her workplace, which she did while under his influence. Even as her awareness began to return in moments, separating from him proved difficult. When she attempted to resist more and more, Alric demanded a proof of loyalty that almost cost her life.
Just in time, she was found by two Camarilla agents, Peyton, a Tremere, and Victor, a Lasombra. Peyton Embraced her in order to gain access to information about Alric, who they were actively pursuing.
Ripped out of a life that was a living hell anyways, Yuki goes on to reclaim what is left of herself in death."