Saijo Kinoka (Ishida Hikari), her husband Makoto (Katsumura Masanobu) and their two children move in to their new mansion in Kamakura, after her father-in-law passes away. Makoto’s stepmother Chizuko (Takahata Atsuko) lives in a home on the same land. During a party to celebrate their new home, Seno Itsuki (Imai Tsubasa) suddenly appears in front of Kinuka. Itsuki is her ex-boyfriend and he broke up with her 18 years ago. He asks her if she could hide him, because of a moneylender that is after him. Kinuka refuses and Itsuki disappears. She later finds him living in her attic.