The atmosphere in the family shows mutual trust and affection. However, only the eldest daughter, Chika, knows about her father's infidelity. She tries in every possible way to reform her father, but gradually she begins to see her own family, which she had not been able to see before.

家族が纏う空気から、互いへの信頼、愛情が感じ取れる。ただ、長女の知夏だけが父の不倫を知っている。どうにかして家族の形を元に戻さないといけないと思い、あらゆる方法で父を改心させようとするが、次第に今まで見えていなかった「自分の家族」が見えてくる。