In a Japanese city marked by the post-war era, a young rebel named Kōji lives on the fringes of society. Passionate about boxing, Kōji tries to find his place in a world that seems to be crumbling around him. However, his life takes an unexpected turn when he crosses paths with Yūko, a beautiful girl with a strong personality who dreams of escaping the monotony of her life. As Kōji immerses himself in the world of boxing, his relationship with Yūko becomes a refuge of hope and love, but also a source of conflict.
The atmosphere of the city is hostile, and Kōji faces pressure from local gangsters and the expectations of his family. These challenges push him to make difficult decisions in his life and sporting career. As his talent in the ring grows, so does the tension between his desire to succeed and his need for authenticity.
Yūko, determined not to be just an extension of Kōji's dreams, fights for her own identity. As the story progresses, both characters must confront their fears and aspirations, discovering that the true battle is fought not only in the ring but also in the heart. In this intense tale filled with emotions and difficult choices, youth confronts the harsh realities of life in a desperate search for freedom and true love.