Nephew Shohei decides to let his aunt, Saori, stay at his apartment while she comes to the city for training. Seeing her again after so long makes his heart race and emotions surge. But a new development soon arises—Shohei's friend Matsunaga instantly falls for Saori and begins pursuing her. Worried that he might lose her, Shohei starts to wonder what he should do. What will unfold between the two? The future developments are intensely intriguing.