After a broken heart, university student Suzuki moves to a new apartment. He spends his time alone and feeling lonely in his new apartment, but he is drawn to his new neighbor, Honoka. However, he is Kokoro to approach her as she is a married woman and is frustrated. One day, Honoka invites Suzuki over to her house. Honoka, who has developed a mischievous Kokoro to Suzuki, begins to make exciting approaches to him, upsetting the virgin young man's daily life at every opportunity...