自動車教習所の指導員を務める芹沢理一（妻夫木聡）は、大学時代、映画監督を目指していたが、自分自身にブレーキを掛けてしまい夢を追わず今に至っていた。ある時理一はコーヒーショップで、注文したものと違っていたので取替えようとしたところ、牧野衣咲（深津絵里）に横入りだと非難される。衣咲を見た理一は彼女に見覚えがあった。衣咲は理一の自動車教習所の生徒でもあったが、かつて理一が通っていた高校に教育実習生として赴き、理一の人生に影響を与えた人物だった…。
A man who constantly applies the brake in his life, a woman who could do with a brake in her life. It's in summer of 2005 that the journey of their passionate love begins. Here's a bright and breezy love story that makes us feel how wonderful it is to fall in love. Since we only have one life to live, why not do what we want and live with someone you love? A morning in early summer. The 25-year old Riichi, an instructor at a driving school, is riding coolly on his motorcycle. Isaki is a 31-year old woman who is learning how to drive there. As luck would have it, they end up meeting each other. Although the two of them had very clear plans for life up to a few years ago, reality isn't so nice. Riichi has settled for work as a driving instructor to make his living while Isaki has been given charge of a store. Pursued by the bustle of everyday life, they're living lives where they tend to forget to take a fresh look at things.
