The Takeshima brothers depend on each other after losing their parents. In order to raise tuition for his younger brother, the elder brother Tsuyoshi embarked on a criminal path and was eventually imprisoned for robbery and murder. After being imprisoned, the elder brother missed his younger brother very much and kept writing to him. But when the news that his brother was a murderer spread, the younger brother Naoki's life fell into hell in an instant. Although he knew his brother's love for him, this love made him bear a heavy fate. Even after getting married and having children, he had to break off his relationship with his brother.