Kareshi Kanojo no Jijou - Daily Labyrinth

After so many tears and frustration, Yuki and Arima become steady friends to each other. However, both of them are too busy to have time to meet because of preparation for School Sport Day. And after the School Sport Day, a handsome boy, Hideaki Asaba, from Class 1F approaches Arima in a strong defiant mood. Being Arima’s girlfriend, Yuki wants to be friends with Asaba. However, Asaba insults her at the first time they meet. He even says Arima will break up with her soon!. Outraged, Yuki declares war against Asaba!