Marin Kitagawa | Gamer Girl

Marin Kitagawa is an above-average height girl with a slim waistline and light skin tone. Her eyes are naturally a dark brown, although she is almost always seen with dark pink color contacts when she isn't cosplaying. She has long, glittery-pink acrylic nails. She has smooth blonde hair with an ombré transition to pinkish-red or citrus orange at the tips and reaching down to her waist in the rear; her side swept bangs cover a majority of her forehead and eyebrows, reaching to her eyelashes; two locks of hair flow over her shoulders and end around chest height. Her hairstyles include long straight hair, a single ponytail, a double ponytail, a double knot on top, a bun and a single top ponytail.

Marin typically wears multiple silver ear piercings which include a captive bead ring through each earlobe as well as two round studs in her right ear, three round studs in her left ear and a barbell in an industrial piercing through her left ear. In the manga, she can be seen with a tongue piercing, but this was not included in the anime.

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, not wanting to spoil their image.

She is notably very kind, friendly, cheerful and outgoing. It is shown that Marin greatly dislikes overly-critical people that judge others for their interests, causing her to reject the advances of a boy at the start of the series, who poked fun at her liking anime. Marin's non-judgmental outlook and friendly nature causes her to greatly admire Wakana, not caring that the boy is seen as awkward and quiet by others. She saw no reason to keep their newfound friendship and a secret, openly greeting him in the school hallways and later treating him at a ramen restaurant.

Marin holds her own values and can be quite earnest when it comes to it, despite her cheery and carefree attitude.

While possessing a mature side, Marin can be something of a scatterbrain on occasion. She poorly knitted a prototype of her first cosplay outfit (Shizuku Kuroe), despite a guidebook she possessed having step-by-step instructions. She is also a procrastinator, often opting to watch anime over doing work and completely losing track of time as a result. Despite this, she can be surprisingly proactive at times, such as finding out where Wakana lived so they could start their first cosplay project right away rather than waiting over the weekend. Marin claims that when she gets an idea, she doesn't waste time and gets straight to it, revealing a more rash and impulsive side.

Marin is shown to be very bold and immodest, as she had no problem with allowing Wakana to take her measurements for her first cosplay outfit, and doing so while wearing a bathing suit despite still being early on in their friendship. She has a more teasing side, sometimes making jokes at Wakana's expense and laughing at whenever he gets embarrassed and flustered.

Despite being carefree, Marin isn't thoughtless of others, far from it. She is selfless and doesn't want to burden others by any means; instead, she tends to blame herself instead of putting it on others, warmly apologizing for any inconvenience, no matter how small.

She has a habit of being embarrassed by seemingly insignificant things, while being woefully unaware or uncaring of clearly more humiliating factors. Plus her stomach growls when she's embarrassed, indicating hunger.