A song drama based on the autobiographical song "The sun is laughing" by composer Endo Minoru. It tells the story of a young man who moves to Tokyo with a big dream of becoming a composer, and despite the unfamiliar city life, sticks to his original intentions with the gentle encouragement of his young wife, and takes the music world by storm.
Komatsu Takioka is boss of a Yakuza group rival to Masakichi Kijima boss of the Kikuya group which supports the town vendors unlike Takioka, who will stop at nothing to undermine the vendors and take over the territory. Masakichi will do all he can to protect and support the people. Ryutaro Kijima is senior son to Masakichi, though disowned, he keeps interest in the family from a distance. He will be there for his father and his hot tempered younger brother Katsuo, if they should need his loyal help.
