考试失利后，学生们尝试通过体育配额进入大学，他们选择了拳击。他们幸运地通过了地区比赛，但在更高级别的比赛中却面临着不确定性。

Pottan is going to a riding camp, but ends up at a recycling center where she is taken care of by the strange staff. One day Pottan finds out that the staff are building a space rocket.