Aika was a nerdy girl who was forced to practice vallet until during a vacation she got bored of it and decided to train a lot at the gym When she returned to Vallet they expelled her for her behavioral problems and her inadequate physique, she is a mocking tomboy who likes to humiliate everyone, She likes to be a bit bitchy with everyone and insult them and be aggressive although in reality she just wants to be treated like a girl, Currently she works as a gym coach