A pretender with someone's stolen face. A demon who doesn't deserve to be anything more then the role thrusted on to her. She has some major self esteem issues going on.

-She definitely not as sure about herself as canon Mizuki is when she goes to Lyoko for the first time. She views herself as a monster. (1/2)

-Yumi is pretty quiet and sometimes standoffish when she is freed. She definitely has more of a spine then Mizuki, and this leads to her constantly budding heads with Ulrich. A lot.
-Even though she doesn't let it show, a lot of the boys' words dig at her and eat at her sense of self.

-She has an impressive Unicorno and Littlest Pet Shop collection. Most of her surface space in her room is dedicated to her collections.
-She is very into decora kei fashion! She does her best to work with what she has.

-Like Yumi in canon, Mizuki was a loner with many of her peers making fun of her for how loud she is (both volume of voice and personality). Being apart of the Lyoko Warriors is the first time she belonged somewhere and she was wanted.

-Mizuki, Odd, and Ulrich are extremely tight knit, with both boys almost taking big brother roles with her.

2/2

Honestly, she's been submerged in worse lol

Not truly! In this Au when Yumi fell into the digital sea, Xana pulls her out first before Jeremie could. In a panic, Jeremie is able to dig up and de-xana the Yumi clone Xana sent them a few days before (Image problem happens before Cruel Dilemma in this AU). She takes the name Mizuki later on!

And here are Odd and Yumi! 2/2