She hates it when people always stare at it and that no one seems to like her for who she is.She idolizes Yamato because he defended her from boys teasing her about her chest in middle school, and wishes for a prince of her own to protect her.She starts to date Kenji after he confesses he likes her for who she is, not just the size of her breasts. She's brazen and bad-mouthed, but has a nice and friendly side.

She strongly believes that love requires self-sacrifice and effort, which prompts her to go to extreme lengths for her boyfriends, for example she used multiple cosmetics to look pretty despite breaking out for her old boyfriend.

She lost 20 kg to try to get Yamato to become her boyfriend, but this caused her to have scars due to sudden weight loss. He has slept with many girls just to feel as "popular" as Yamato.

After Mei stands up for her, she learns to accept Mei as a friend and supports her through tough times. His childhood friend, Chiharu, is one of the few people who treats him as a friend and respects him for who he is.

At first, she is described as "freakishly gloomy" and someone who "doesn't speak". When a stalker harasses Mei she calls Yamato for help and when he arrives, he kisses Mei to get the stalker to go away.

In addition to being anti-social and clumsy, she is also observant, honest, supportive, and funny. Over time, Yamato's interest in Mei grows to the point that he asks her out and they start dating.

As her relationship with Yamato Kurosawa progresses, she begins to open up to others more and she eventually falls in love with him. Asami describes Yamato as someone who thinks of others more than anyone else, protects what should be protected, and cares for others despite having his own problems to deal with.

Mei's classmate and friend who has complex feelings about her large chest.

An anime adaptation by Zexcs aired between October 6 and December 30, 2012.

In North America, the manga is published by Kodansha Comics USA and the anime is licensed by Sentai Filmworks. Quiet and unassuming Mei Tachibana has spent her high school years without making friends or getting a boyfriend because of a childhood incident that left her believing that people will betray each other sooner or later.

She encounters a popular boy named Yamato Kurosawa, he becomes interested in her, and it is through their tentative friendship and blossoming relationship that Mei ultimately begins to branch out and befriend others.

Mei used to be a social person but because her classmates blamed her for an accident she decided never to befriend anyone again.