Kobayashi Isamu, a first-year high school student, lives in a family of four with his father, an artist, his mother, an insurance agent, and his sister, an office worker. To make ends meet, he works as a milkman. At school, he is a member of the kendo club and spends his days working out with his seniors. Over time, he has various encounters with a series of girls.

• Shochiku
• Kawarasaki Gonjuro IV
• Mako Ishino
• Jun Fubuki
• Machiko Ohtani
• Toshie Negishi
• Masato Furuoya
• Gō Awazu
• Tatsuya Miyazaki