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When Kana was 6 years old, her best friend Kouki moved away to Hokkaido. But before he left, they promised to meet again and get married. For seven years, Kana has kept true to this promise, but when Kouki finally returns, things are not as she had hoped them to be!
Koyuri and Sei-chan are childhood friends who have lived in the same condominium since they were born. They grew up together, but they haven’t talked since she was bullied because they were too close and she decided to stop talking to him when they were in 6th grade. Now that she’s a high school student, she’s changed her mind and wants to fall in love and get a boyfriend...!?
Yuuki is a cute boy, who is Akane's childhood friend. Akane starts to fall in love with a guy and she confides in Yuuki. But Yuuki would not have it, as he kisses Akane. For the first time, Akane gets to see the real Yuuki?!
It's summer vacation time, and no one is more excited about it than 2nd year high school student Karin-chan. Her childhood friend Sakumi-senpai is coming home from college to visit! Karin and Sakumi, along with his younger brother Tatsumi are childhood friends. Sakumi hasn't been gone long, but now that he is back, Karin can really see a difference in him. Just seeing him makes Karin's heart beats faster. Her crush on him hasn't changed.
Normal face, normal style, bad at sport, bad marks. The middle of middle (no, lower!?) girl, Kotoha, is a childhood friend of Kanade who is handsome and clever. Secretly Kotoha loves Kanade, but Kanade always act cold towards her.... Kotoha wants to be able to be friends again with him by calling him 'Kana-chan' like in the past, but he got angry because of that.... That time, she got close to the class playboy Haruta...?
Rinko is a girl who goes to a female-only class with fancy facilities, established in a formerly boys-only school. The nickname of her class is "the girls' class." Even though she's treated as a VIP, associating with guys is strictly forbidden, so every day is very boring for her. On top of that, she is one-sidedly in love with her childhood friend, Kousei, who also goes to the same school. But attending the same school is wasted, as long as the rules say she can't talk with the male students! With him with the help of a friend she recently made, Shuu, Rinko sets out on a quest to reform the school!!
Hikaru, Ryuuhei and Miyabi's houses are close to each other. So they have been best friends since childhood. They think their relaitonship won't change. But over time, little by little, different feelings developed.
Kaya meets her younger childhood friend Reo for the first time in many years. But what happens when she is made a fool of by the mature-looking Reo!?
Smart, gorgeous, and sweet Yohei is considered the Prince Charming of the neighborhood street market. The only person he's ever mean to is Rio, his childhood friend. However, Rio can't help but feel butterflies in her stomach because she's always had a crush on him. That small bit of time before school when they "run into" each other is special for Rio. He teases her, is mean to her... and then he's sweet to her. They've been friends for so long, she can't tell him her feelings, but as long as she can be with him...