NHK的第62部晨间剧。年仅19岁的北山夏菜（田畑 智子 饰）幸福的打算与高中时代的学长村井健人（筒井道隆 饰）结婚。当婚礼进行到关键时刻，突然走出了一个陌生女人，拉着新郎健人往外跑，留下了不知所措的夏菜。

　　健人一直想成为一个成功的拳击手，而带走他的正是东京一间著名拳馆的老板女儿。但他根本不知道，夏菜此时已经怀孕三个月。虽然众人都无法理解健人的所作所为，更说服夏菜等待健人，但倔强的夏菜还是决定要生下她与健人的孩子，并取名北山太阳（篠田 拓马 饰）。

　　从未放弃等待健人归来的夏菜，一天得知了健人在东京出现，于是夏菜决定带着刚出生的太阳寻找丈夫。

　　为了能立足与东京，养活孩子，寻找丈夫，夏菜付出了许多，渐渐长大的太阳也十分懂事……

This is the story of a young mother, Kitayama Nazuna, and her son Taiyo from Ohma, a small town at the tip of a peninsula in Aomori. Taiyo's father, Murai Kento had aspirations to be a professional boxer but due to a detached retina he was forced to abandon his dream. Leaving Nazuna behind, he left for America, with another woman, to get treatment for his eye-problem, unaware that Nazuna was pregnant. As his life is boxing he quickly returns to the ring after the operation turns out to be successful and once again he dreams of becoming a professional boxer. However, success eludes him and he returns home to Japan. Nazuna meanwhile has given birth to her son and moved to Tokyo to search for Kento. By chance she finds Kento. When discovers he has become a father, he tries to make up for lost time. The show picks up their story as Nazuna, Taiyo and Kento begin family life together. Of course things are not as simple as they appear.

青森・大間に育った19歳の北山なずな(田畑智子)は、結婚式の途中で新郎・村井健人(筒井道隆)に逃げられた。おなかには、健人の子どもが。なずなは、息子・太陽(篠田拓馬)と２人で健人を捜しに東京へ行き、プロボクサーになる夢を追っていた健人と再会。しかし、１人で太陽を育てる覚悟を決め、給食の調理師となって大切な息子を育てていく。やがて、健人となずな、太陽は、「結婚」という形を取らないまま、家族同然のようなよい関係を保っていく。