Kuze Shunpei, a high-school student, is on spring break going to Hokkaidou when he loses his wallet. Stranded in the mountains with no money and his motorcycle having run out of gas, he passes out in the snow on the side of the road. When he wakes up he finds that he's been saved and brought to the Watarai farm, a horse ranch that breeds race horses. There he meets a host of various people, ranging from stable hands to the owner and his family (which includes four daughters).
Shunpei is completely unsuited for the farm life, and his city upbringing contrasts sharply with the hard labor required to help the farm out. Yet despite all this, he tries his best to become accepted. However, he constantly gets into arguments with Hibiki (the second daughter), who views him as useless. Things come to a head when Shunpei scares one of the horses, who throws Hibiki (Hibiki is a rider). Ashamed, Shunpei flees back to Tokyo for the rest of the spring break. But back in Tokyo, Shunpei begins to long for the simple farm life. Will Shunpei ever be able to return and prove himself to be worthy of being a member of the farm?