|School||Toumei High School|
|Occupation||High School Student|
|Manga Debut||Chapter 1|
|Anime Debut||Episode 1|
Mei Tachibana (橘 めい Tachibana Mei) is the female protagonist of the Say I Love You manga and anime series. She is Yamato's love interest and current girlfriend.
Mei is a young teenage girl with fair skin and brown hair and brown eyes.
She is very skinny and slumps a bit and she rarely smiles, but she frequently blushes when she is around Yamato.
At the beggining of the series her hair is in a short, levelled hime-cut style just above her forehead, with chin-length strands framing her face. But over time, she allows her hair to grow, now reaching to her waist with straight bangs covering her forehead.
Mei is usually seen wearing her school uniform consisting of a white shirt, striped blue tie, yellowish sweater, and a black skirt with black socks and brown shoes. Outside school she usually wears casual clothing.
At first, she is described as freakishly gloomy and doesn't speak. She is asocial, clumsy, observant as well as honest, and funny.
As time goes on her personality begins to change. She now accepts people as friends more easily. She also becomes more social and more attached to people. This is proved when Megumi befriends Asami and Aiko in order to leave Mei without friends. Despite this changes in her personality, Mei continues to be as clumsy, observant and honest as she was in the beginning.
Mei also begins to help people who have are in situations similar to the ones she has experienced and tries to give out advice every now and then. She has become more confident and is willing to express what she has to say.
When Mei was little she had friend who she trusted. When the classroom pet died, her 'friends' turned against her and blamed her for the pet's death. However, Mei was not responsible and the true culprits were her 'friends'. This experience greatly impacted Mei's life as she learned that people turn against each other, therefore she shouldn't trust.
Mei is a quiet girl who did not talk much at school. She has no friends or boyfriend in the past 16 years, because she believe people are quick to betray each other, therefore she does not need them. Her friends called her "freakishly gloomy" and they believed they never heard her voice.
One day, Nakanishi Kenji accidentaly pushed her to the floor, causing her hands to bleed a bit (in the manga, Nakanishi is the one who pushed her in order to make Yamato laugh). However, she doesn't speak anything and just walked away. Not long after, Kenji met her again at the staircase, and he tried to see her underwear. When Kurosawa Yamato tried to stop him, Mei already turned around and accidentaly give Yamato a kick and yelled to him to leave her alone, which caused him to fall. Some of the girls yelled back at her and asked her to apologise since Nakanishi is the culprit, not Yamato. However, Yamato just laughed and says that she is interesting.
When Mei wants to take her shoes, some letters drop from the cupboard, saying that she should apologise to Yamato. When she turned around, she sees Yamato is already there and he asked if she is okay. She finally apologised to him and gave him a lot of bandages. Yamato said that she is interesting and he wants to know her even further. He asked her mobile phone number, which she reluctantly refused. Despite this, Yamato write his number on the paper and gave it to her. She asked herself what to do with his number but decided to do nothing.
Few days has passed and Mei haven't called or text Yamato, which makes him curious. He meet her at school and asked why, but she said she hates phones and she doesn't need friends in her life. She showed him her contact list, which only contains home and her work place.
When Mei finished her part time job, she realised that she has been followed by a regular customer. She tried to walk faster and finally ended up at supermarket to protect herself. She called her home for a few times but nobody answered, which makes her more panic. She waited for the stalker to go away but to no avail. Feeling desperate, she finally called Yamato and asked for his help. He rushed to Mei's place and calmly solved the problem by kissing her, which makes the stalker goes away. Mei scream as it is her first kiss, but Yamato just laughed and he said that he's happy to know that Mei called him. Finally she accepts the kiss as a kiss to help her.
At school, Yamato and his friends, including Oikawa Asami apporached her and asked her to join the karaoke, which she agrees. Some of Yamato's friends, including Aiko Mutō are shocked to know that Tachibana Mei now speaks a lot. Asami asked Mei if she is falling in love with Yamato or already sleep with him, which she denied. Mei said that she only kissed Yamato once, and it was to help her to get rid from a stalker. Asami laughed and said she ever kissed Yamato once too, and in fact, Yamato has kissed every girl in the school except Miki Arai, who is Yamato's first crush. Mei apparently shocked to hear this and she starts to wonder if Yamato still has feelings for Arai.
Mei meet Arai at school and she admires her cuteness. She starts to think that she doesn't like it when Yamato kissed her forcefully because she thinks it is rude. Later, Yamato called her and asked her to hang out, but Mei refused it. She asked if Miki Arai also joined him tomorrow, and Yamato said yes. Mei asked if it is true that Arai is his first crush, and again Yamato said yes and asked her why. She explained that she heard about the rumour (that Yamato have not kissed Arai yet), and Yamato said just think what she wants to think, because he only kissed a girl whenever he wants to.
To satisfy her curiosity, Mei decided to follow Yamato to karaoke. She tried to disguise herself with using hat and glasses. On the other hand, Yamato was asked to meet Arai at the toilet, which he refused by leaving the karaoke place. Upon leaving, he encountered Mei and asked her why is she here. She said that she thinks that he would come out with Arai, and Yamato asked her what would happen if he does. He also asked why she talked about Arai on the phone, which makes Mei yelled at him to stop. Yamato kissed her again, and Mei screams, asking him why he kissed her again without permission. Yamato simply said that he did because he feels want it. Mei said that it is hurts to have a kiss without feelings on it, and she is definitely not happy with it. Yamato shocked to hear it and and kissed her again. He said it is a kiss to say hello. He kissed her again, and said it is a kiss to a person he thinks is cute. He kissed her again, and said it is a kiss to a person that he wants to know better. He kissed her again and said it is a kiss to a person that he has feelings with. He asked her whether she understands the differences between those kisses, and asked her if she has feelings for him. Mei said that whenever she thinks about him, her heart aches, which Yamato replied that maybe it is love. Finally, Yamato kissed her for real, and Mei said it taste like fried chicken.
Although at first she didn't want anything to do with him, Yamato was the first person she learned to trust. Yamato gave Mei his number insisting she called him some time and even though she swore she wouldn't she ended up calling him when she was being stalked by a man. Solving the problem calmly, Yamato was Mei's first kiss. Yamato also was the first to become her friend and eventually her boyfriend. As the series progresses Yamato and Mei continue to grow as individuals and as a couple. He introduced most of Mei's current friends.
They first met at the bakery where Mei works. Mei later found out that Kai was Yamato's childhood friend who used to be bullied. Kai firmly believes that Mei and him have more in common that Yamato and her, therefore he understands her better. He is in love with Mei and will not give up, even if he knows Mei doesn't share those feelings.
Asami is Mei's first female friend and one she learns to trust. Mei even went as far as to defend Asami from two girls who were badmouthing her. Asami is also one of the few people Mei opens up to. When Megumi managed to distance Asami away from her, Mei felt devastated. They are currently close friends and wear matching cell phone decorations.
At first Aiko thought Mei didn't deserved to be with Yamato since Mei didn't work hard to get with him. After she heard Mei talk about herself and Yamato she accepted her and became her friend. Aiko always sees through Mei and can tell when she is hiding something. When Aiko notices Megumi's plan to make Mei feel alone, she stops hanging out with Megumi. Aiko remains close friends with Mei and helps her in her relationship with Yamato.
Megumi considers Mei her enemy and love rival. At first, Mei was fooled by Megumi's good girl act, but she later found out about the true Megumi. Megumi hasn't changed and continues trying to split Mei and Yamato.
Nagi can be considered a younger Mei. When they first met, Nagi wasn't fond of her brother's girlfriend. However, when Mei told Nagi her story, she started to see the real Mei and how similar they were. Mei helped Nagi overcome her insecurities and encouraged her to try and trust people.
- Mei is very talented at bowling and catching goldfish.
- Mei has trauma at cooking, since her first cookies broke her father's teeth.
- When angry ,Mei tends to eat enormously.
- Mei adores cats and even owns one "Marshmellow".