ギャンブル好きな三流ジョッキー･氷室翔が、さまざまな人や馬との出会いで一流ジョッキーへと成長していく競馬人情コメディ。いい加減な生活を送るギャンブル好きなジョッキー･氷室翔は、騎手の体重制限で減量に苦しみながらもマイラーズカップに異様な意気込みを見せる。実はそのレースに恋人･アブ美との結婚がかかっていた氷室だったが、真剣に取り組んだレース中に腹を下してしまい......!? A heartwarming horse race comedy of a third class gamble-loving jockey Shou Himuro and his meetings with various people and horses that grow him into a professional jockey. Gamble loving jockey Shou Himuro who was leading a irresponsible life, suddenly started to showed absurd enthusiasm in the next Milers Cup race even as he struggled losing weight for the weight limit. The truth was, his hand in marriage with his lover Abumi on the line, but he gets an upset stomach in the middle of this important race...!?