Marmalade Boy

Meiko goes to the library to get some materials for a manuscript. She keeps remembering Namura Sensei, they aren't sad memories though. Satoshi has the idea that Miki, Yuu, Meiko join him to a movie for a double date. They four of them split up into pairs and Meiko isn't happy about it but she realizes Miki needs time alone with Yuu. After the movie ended, Yuu started running with Miki out of the theater. Satoshi has the idea that if Meiko spends the day with him, he will tell her his relationship with Yuu. The next day Yuu leaves with Satoshi to go somewhere. Miki and Meiko Follow them. What do they discover?