One year has passed since Take Seiji became a full time employee at Oetsu Construction. The Take family, having moved into their new home, have been living there peacefully until Sumiko's brother shows up one day while she is out, and Seiji and Ayako discovers that their parents had in fact married despite objection from Sumiko's family.
Also, Manami, in the midst of her internship in Okayama, is coming back to Tokyo for a week, and so Seiji and Manami are finally able to reunite. Manami's father had passed away when she was young and her mother, Sayuri, had remarried since then. Growing up in such an environment, Manami had fostered a complicated relationship with her mother, and because of that the prospect of marriage wasn`t appealing to her.
Seiji, having just started his new life, hadn't really given much thought to marriage, but after meeting Manami's mother, he is shocked to learn how Manami feels about her mother and towards marriage. But one day, on the way home from drinking with the Oetsu Construction members, Seiji and Manami come across an abandoned kitty. After promising to take care of the kitty only until a new owner is found, Manami is able to take care of the kitty at her mother`s home. But, while Manami is out at work, the kitty becomes ill and Manami's mother not knowing what to do contacts Manami and so Seiji decides to take care of the kitty in the meantime. And, the very presence of the kitty becomes a turning point for both the Take family and Manami`s relationship with her mother... -- Fuji TV
武誠治（二宮和也）は大悦土木の正社員となって1年が経ち、武家は新しい家での生活を穏やかに過ごしていたが、ある日、母・寿美子（浅野温子）の不在時、武家に寿美子の兄・浅岡久志（国広富之）が訪ねてきて、誠治と亜矢子（井川遥）は、両親が寿美子の家族の反対を押し切って結婚したことを知る。また、和歌山で研修中の真奈美（香里奈）が東京に1週間滞在することになり、誠治と真奈美は久しぶりの再会を果たす。真奈美は父を早くに亡くし、その後、母・小百合（風吹ジュン）は再婚。そんな家庭環境から真奈美は母に対して複雑な感情を抱いており、結婚に対しても冷めた感情を持っていた。誠治もまだ、新生活が始まったばかりで結婚を具体的に考えたことはなかったが、ひょんなことから真奈美の母に対面し、真奈美の母親に対する複雑な思いや結婚に対しての冷めた考えを知ってショックを受ける。そんなある日、誠治と真奈美が大悦土木のメンバーと飲んだ帰り道、真奈美は捨てられた子猫を見つける。飼い主が見つかるまで真奈美が面倒をみるという約束のもと、真奈美は母のいる実家で子猫をひきとることに。しかし真奈美が仕事で不在時、子猫に元気がないと真奈美の母が動揺して、急きょ誠治が家に子猫を連れて行くことに。そして子猫の存在がきっかけとなって、武家、そして真奈美と母親の関係が動き出して・・・。
