Misayo Nakamura is the new girl at Samezuka Academy. What happens when she bumps into her childhood friend, Nitori Aiichiro? He ends up introducing her to the shark, Rin Matsuoka and it doesnt really turn out good... Despite Rin's grumpy attitude. But what happends when he remembers her face? And what happens when Rin surprisingly falls for her? Will Misayo feel the same?