Private family novels

Tetsuro (Miura Tomokazu) and Aki (Watanabe Makiko) Although they live together, they are different from ordinary couples in that they have an open relationship and do not interfere in each other's private lives. Tetsuro had a failed marriage and an 8-year-old son Shunsuke (played by Hiroo Fushiya). Unfortunately, his ex-wife suffered a car accident and was unable to take care of the children, so Shunsuke came to Tetsuro and Aki's home to live temporarily for a while. Although Aki didn't express many opinions on Shunsuke's arrival, he was very unhappy in his heart. Not only that, the relationship between the rebellious Shunsuke and Aki is very tense. He always feels that Aki stole his father from his mother, leaving him without his father's love. After a series of accidents and twists and turns, Shunsuke returned to his mother, but can Zetsuro and Aki restart their former lives?