Makoto, a first year high school student, was forced into joining the Beauty Research Club by upperclassman Bidou Yoh. The only problem is that she always feels like throwing up when faced with beautiful men! Yoh's younger brother Mucchi and Makoto start to have feelings for each other and it grows into something more, but then they find out that Yoh is Makoto's half-sibling and now the young couple must overcome different life hurdles.