Riamu Yumemi

A very obsessive fan of idols ends up becoming one herself, and despite her lack of self-esteem, she must be standoffish as a coping mechanism. Probably the poster girl for the definition of Menhera, mainly because Shoko the metal girl isn't nearly as popular. Really the only good luck she's ever had in her life is becoming the very thing she's obsessed over, and somehow shooting way up in popularity and staying there since her own debut. Though her three sizes are never directly mentioned, it's also implied she has one of the largest boobs of the game, and considering she's only around 4'11 (149cm), guess that makes her a shortstack. I guess representing some of the shitty aspects of a fandom while being a hot chick can work sometimes.