I really love it when people make fanart including Yuki, and they make her character some sorta ominous yet prevalent figure manipulating everything to go her way, because that's ALMOSt exactly what she is.
From the deaths to getting Chan arrested to getting Taurtis and Sam to date her to egging Sam on during the Taurtis2 arc. And when Chan got out of jail, Yuki was able to befriend her and use that friendship to keep the main trio away from the ghosts. She got everything to go her way nearly the whole time (until things didn't 😬).
But a lot of people also forget that she's also a broken teen just like the trio. Her dad is the head of the Yakuza, so killing and manipulating to get what you want was natural to her. It was normal.
(And that's not mentioning all her lore with her original-timeline emotionally-distant-demon-mom and emotionally-distant-yakuza-dad, which was why Yuki snapped when it was revealed that neither Sam nor Taurtis didn't actually care about her, and explains why Yuki snapped when the dad that did care about her was killed. And Maria, Yuki's first Victim that she was soul-bonded to.)
-
