Kaname Matsugaya is a policeman working at a local police box. He once married a woman named Toko, who was reckless and pushed Kaname around. They ended up divorcing 10 years later. Their daughter, Konami, instead of living with her caring father, Kaname, went to live with Toko. Later on, Kaname goes on to marry a caring woman, the exact opposite of Toko. They start their new life in the town where Kaname is transferred, but that town just happens to be the place where Kaname’s ex-wife and their daughter live. In this hard, imperfect world, full of worries, anger, and laughter, Kaname gets trapped in a situation where he must determine whois the most important to him.

街道派出所的民警松之谷要，十年前与东子结了婚。一心梦想创立名牌服装的东子开朗奔放，把松之谷折腾得精疲力尽，最终还是离了婚。但不知为什么，女儿小南没有选择踏实稳重的爸爸，却跟了连自己都照顾不好的妈妈。之后，松之谷再婚，新妻子路留温柔娴静，很顾家，性格与东子正相反。新生活刚开始，松之谷因人事调动，被派到新的街道赴任。而不巧的是，那里住着前妻东子和女儿小南。一个是离婚而破裂的家庭，一个是振作精神从组建的新家庭，偶然地同住在一条小小的街道上。面临困境的松之谷无法隐藏心中的不安与动摇。针锋相对又不时相互牵挂的离了婚的夫妻，还有成长期的女儿，以及渐渐地了解到一些实情而踌躇不已的现任妻子……。四人编织的生活剧将向着怎样的方向发展呢？在犹豫、烦恼、喜怒哀乐中，松之谷 被迫陷入了「谁是最珍爱的人」这个难题中。到底应该作出怎样的决断？在小小的街道上，大家编织着微妙的人情关系，结局将呈现出怎样的「家庭间的牵绊」呢？