Yumemi Renge, a current high school girl who's a TS reincarnate obsessed with VTubers and also a hardcore yuri fan, has made a bold decision: "I will dominate the VTuber world with a mesugaki (bratty girl) persona!" After relentless effort, she successfully debuts as Hanayori Kohaku, and immediately sets out to seduce all her VTuber senpais and peers at her agency... but her bratty girl persona collapses almost immediately! Despite that, her viewers love it, commenting things like "Brat lol," "She's basically Mama Hanayori now lol," and "Don't push yourself, Hanayori." Through collab streams and real-life interactions, she gradually charms her legendary senpais and quirky peers one by one—what will happen next!?