Marin is boisterous, extravagant, messy, and while quite mature, she's also clumsy. As a cosplayer and huge otaku, Marin is a big of fan of magical girl anime and adult video games. She strongly desires to cosplay as certain characters, seeing the notion of dressing up and becoming said characters as the ultimate form of love for them. Marin's love for the characters she likes extends to the point where she won't cosplay as them if she feels as though she can't fit their appearance.