在新闻部门工作的女强人岩谷澄丽(加藤小雪 饰)，因为个性不茍言笑，虽然有哈佛大学的高学历，却被私底下称为“木偶”。在发现自己的男朋友居然跟别的女人怀孕之后，她下定决心下定决心下次要找个学历身高收入都比她高的男性。因为上班时打了上司一拳，所以被调到不起眼的生活情报部门。经历工作与爱情的双重打击，失意的她更是关起心扉不让任何人接近。某日澄丽晚上回家时，发现在家门口有一大箱子，里面居然躺着一个受伤的大男孩合田武志(松本润 饰)，此时天下起了大雨，澄丽在无奈之下只能将武志带回家照顾，次日武志耍赖不肯离开，并保证会象仆人一样为澄丽做任何事情，看着武志可爱的表情让澄丽突然想起小时候喂养的爱犬momo，便将男孩当宠物一样对待，并给他取名momo......

Oei, later known as Katsushika Oi, was born the third daughter of Edo’s talented painter Katsushika Hokusai and his second wife Koto. Although Oei became the wife of a town painter for a time, her love of the paintbrush more than her husband spelt disaster and she comes back home to Hokusai from the family she had married into. This is how Oei starts to help her father out in his painting of the “insurmountable high wall”. Meanwhile, Oei can only talk to the painter Ikeda Zenjiro, who is her father’s student, about her pain and worries. Zenjiro has taken Edo by storm as Keisai Eisen, the master of ukiyo-e portraying beautiful women. He visits regularly because he admires Hokusai and secretly likes Oei although their relationship is like childhood friends. Oei respects her father whose paintings fascinated her and continues to work as a painter who supports him behind the scenes. When Hokusai’s masterpiece Thirty-six Views of Mount Fuji was completed, she was also by his side.

When Mutta was 12-years-old and Hibito was 9-years-old the two brothers saw what they thought was an UFO flying towards the moon. They made a pact then to become astronauts and one day fly into space together. Fast forward to the year 2025. Older brother Mutta (Shun Oguri) works as for an automotive company and his younger brother Hibito works as an astronaut. Although Mutta failed to follow through on his childhood promise, after losing his job, he receives a phone call from Hibito which reignites his childhood dream of flying into outer space ...