The simple and prudent dispatch member Yamamoto Riko (played by Kudo Mio) was suddenly fired, and her deposit balance of 80,000 yen was pushed to the edge of the cliff.Feeling uneasy about the future, he was on his way home with no other options. When he fell down the stairs, he was rescued by a handsome employee Tsutomu Ando (Ogawa Shiki) whom he didn't know.Lizi, who was treated tenderly by Qin, was invited to have dinner together and spent the night in the hotel.Lizi is attracted by the mature and calm Qin... In fact, Aqin is a married person.And he also has another side%….

On the other hand, Lizi's college classmate and unpopular band member Tsubaki Takuma (played by Yamanaka Yutarou) lives a leisurely life every day under the care of her live-in lover.The two of them, who were about to turn 30, were supposed to continue living a stable daily life...

Everyone's hidden secrets and faces will be revealed, and a chain of incestuous events like a swamp in hell begins.