Akane, Murayama and Arito have been good friends since entering high school. During the lunch break, three people always ate lunch boxes, and I thought that the relationship would continue as it was. One day, Murayama confessed to Akane, and Akane couldn't handle it. I thought that the friendship between men and women would continue. Murayama had a motorcycle accident !? Choko lost her mother in a car accident when she was a child. At home, he played a role like a mother and had a masculine personality. However, it was said that Choko's masculine personality and the popular Akizu relationship were dog monkeys, but after a certain incident, the relationship changed !?