Seven men and women are in the tea room of a luxury hotel. Freelance writer Nakajo Ayaeko, photographer Sera Haruto next to him, and company employee Yuuki Osamu who is being interviewed. The one playing the piano is Osamu's lover, Tamaki Midori. The protagonist Yuuki Airisa (Kana Kurashina), a couple of different ages, Mizunotsuki Runa and Sato Remon, overlook their scene from the second-floor lobby. Airisa and Ayaeko are college classmates. Since their student days, she has been very concerned about the person Ayaeko likes. She doesn't care that her husband Osamu has a lover. Ayaeko can't forget her past experiences and thinks she has no chance of falling in love and getting married, but she is gradually attracted by the talent and straightforward attitude of Sera, who is younger than her. Midori drew a line between the relationship of a lover who only takes money during the dad's activities, but when she came to her senses, she became serious about love. Runa, the bar owner who provides love guidance to Ayaeko, also has a soft spot for the young pianist. Gradually, the things they each hold in their hearts become clear, intertwined with each other, and show unexpected connections-