Mizuho is a young girl who just had an argument with her boyfriend, Kei-chan. On the way home, she met a fallen guy from the greenhouse along with a guitar who called himself Tenshi. Mizuho took him home and asked him to form a group for the competition to win a cruise dinner so she could make up with Kei-chan. So will Mizuho get back together with her boyfriend or will something else spark?