After school, Miki is practiceing her tennis serves. Namura compliments her and says the women's tennis club is good. Ryouko says it is because she is a good coach. They laugh. Yuu comes up behind Miki. She turns around and asks him what he wants. He tells her that he came to see her in that cute skirt. Then he calls her a dummy for believing him and walks away. Miki wonders why he really came. Ginta watches from a distance.
Yuu is in the library when a guy comes and sits next to him. Yuu wonders why he doesn't pick another chair since there is so much room. He turns back to his book but then notices the guy staring at him. Yuu asks if he has some business with him. The guy tells him that he is interested in him. Yuu tells him that he isn't comfortable with a guy interested in him. The guy responds that he wouldn't be too happy about it either. Yuu decides that this guy is dangerous. Yuu closes his book and leaves.
Miki and Meiko walk home together.
That evening, Chiyako gives Miki and Yuu tickets to a new amusement park that just opened up. They decide to check it out on Sunday.
At the park, they play games, Yuu gets her a stuffed animal and Miki goes into a hall of mirrors. While Miki is gone, the girl in the picture shows up. Her name is Arimi. Miki meets her. She tells Yuu that she is going to dump her current boyfriend because Yuu is a lot better than he is. Miki can't believe her nerve. Miki asks Yuu about her and he tells her that they went out a little bit the last year of middle school. He tells her that they did the usual sort of things. Miki imagines all sorts of things and he tells her that they did Christmas, New Years and Valentines Day. She's releaved.
He tells Miki that she is the first one he ever kissed. He tells her he knew she was awake then. He could tell by the way her body reacted. She asks why he did it. He tells her it is because he loves her. She thinks he is joking with her again and slaps him. She walks away.
At school the next day, Ginta and Meiko overhear Miki's friends say that they saw her at the amusement park on a date with Yuu. Ginta thinks she is going to far with Yuu. Meiko tells him to stop it. Miki hasn't found anyone she could love since she and Ginta were together and she thinks it is great. Ginta is stunned.
After school, Ginta and Miki have classroom cleanup duty. They are recording the log when Miki puts a piece of candy in her mouth. It has been advertised that it is the flavor of a pure kiss. Ginta wonders if it is true. He then asks Miki if she wants to try and find out. She thinks Ginta is teasing her so she plays along. Then he really does try to kiss her and she tries to stop him. He kisses her anyway. She slaps him and runs off.