Mizuki Hayato is a very bad girl, and she never listens to everyone. She likes to talk trash, push people out of the way, and even steals stuff too, like stealing candy from a baby.
At the age of 12, she's was such a stubborn brat, she never has manners on other people too, which makes her dad not very happy. He keeps punishing her with a slap on the wrists, and keeps going if she does something horrible again. And years later at the age of 16, she gone worst like picking on others, bullying people, stealing stuff from others, and shopping too, and scaring animals away too. After a report to her dad from other people, her dad got really angry at her, and questioning her why she always do this, then she answers that she did it for fun, but causes her dad to pay much money for all the damage she cause, but she started talking sass to him, gave her dad no choice but to slap her in a face hard, leaving Mizuki very speechless, then forces her to be evicted from home. Then few moments while she's walking away, she's starting to realize she was free without her dad around, and do whatever she wants.
At the High School age of 18, she like to bully on people who rubs her the wrong way, or just for fun, but what she liked the most is bullying a cheerful and sweetest girl Muki Koizami a lot. She likes to torture her, and treats her like her toy, like pushing her, putting her in a locker, getting spiders near her, and even steal lunch from her. Once her friends come by having her back, telling her that's enough. Mizuki just walks away like she don't have time for these losers.
Many days later, she continues to pick on Muki is a very hard way, until a new Student Eluza Motoyashi starts getting in her way, and roughly shoves her towards the locker away from Muki, protecting her from Mizuki. Mizuki threatens to throw hands, then starting realizes that Eluza is no joke to her. Eluza starts threatening violence at her if she ever come nears Muki again, and starts talking trash to her really hard, then telling her no wonder your dad forces you to leave home, and it causes some attention to people around school. Mizuki grunts in a very angry way, not knowing what to do, and starts running away from school, and never ever come back.
After Mizuki gets expelled from school, she wanted to have vengeance on Eluza, and even Muki. She starts reading a book about becoming evil, then she starts making a potion, adding some dangerous ingredients. Then once the dark evil potion is done, she starts drinking it, and she feels really, really, evil inside her, then transforms into a wicked witch, having some magical powers, like the dark aura that blasts their stuff to blow up, control other people with her eyes glowing, and even has dark laser eyes too, and any other stuff she does. She now has sharp finger nails, sharp teeth, and has purple lipstick on her mouth. Her clothes is now changed into a gothically lookin dress, with gold belt on her waist with evil gem in a middle. And she's immune to bullets, meaning bullets has no effect on her. Now she feels very generous, and ready to take over the whole universe, and making people suffer from her too. It's up to Muki, Montyosho, and Eluza to stop her once and for all, before the world is doomed by her.