and like Ai said she has a tiger like personality and was ready to pounce any time. Her feelings for Yūichirō are very obvious and she knows so much about him, it almost looks like she's stalking him. Ai even says though Yuichiro will not admit it, Mina and he are very close and share a strong friendship. In fact, Yuichiro and Mina are seen together repeatedly throughout the series having their own private conversations about the events at school. Ai idolized and envied her in junior high. She was also the one that embarrassed Ai in class and made her turn from a "jimi" (nerd) into a popular girl. She has a reunion with Ai and the two quarrel over Sô's affections. A student teacher who seems to have dated Ichinose in the past. She wants him back and sees Ai as her enemy. She looks like a cute little bunny but her personality is the exact opposite. She's Ai's very first enemy in trying to capture Sô's affections. She leaves for a little while but says that she'll return as a full time teacher. She is extremely manipulative and will not stop at self-harm to get attention from Ichinose. She even throws herself down a flight of stairs in volume 1 and claims Ai pushed her. The author referred to Hamano as "Poisonous" in volume 3. The so called 'Queen' of her college campus. Kyoka is stunningly beautiful and men tend to flock to her. She's one of Sô's ex-girlfriends and Ai's next enemy. She explains to Ai that she can never be the 'only' girl for Sō. She adds that it's somewhat like a sisterhood when you date Sô. Ai declines to 'join' this 'sisterhood' and challenges her. Kyoka refers to Ai as "vanilla" when she first meets her. However, despite Kyoka's snobby attitude, she is actually a very emotionally fragile girl. Sakurako A girl who Ichinose's parents would like him to date. She has an English father and a Japanese mother. Sô and Sakurako engaged in sexual intercourse together at 15. Unlike Sô's other girlfriends, Sakurako is rather plain and not so physically attractive. Shuko Sakurako's cruel sister. She is a professional model who has delusions of grandeur. Sô also lost his virginity to her when he was 12 and she was 13. Kuma Kuma first appears in volume 4 on page 112. He is considered