Takahashi is moving to a new apartment. His work is going well thanks to his earnest nature, but his earnestness is also a drawback as he has never had a girlfriend, and he is alone in his empty new home... However, his neighbor Ayaka , who sees through his life without women, sees through him. Ayaka , who has developed a mischievous Kokoro in the innocent and shy young man, takes every opportunity to approach Takahashi, toying with his pure heart...