Kazuo is a minor character in the film, residing and working in the rural countryside of Yamagata. His primary occupation is that of a farmer, and he is specifically involved in the cultivation and harvest of safflowers, a key agricultural product of the region. He is the husband of a woman named Kiyoko and the father of a daughter named Naoko. He is also identified as the second cousin of Toshio, a central figure in the story's present-day narrative to whom the protagonist Taeko grows close. Furthermore, he refers to Toshio's mother by her pet name, Banchan.

Regarding his appearance, Kazuo is depicted as an adult male with black hair and black eyes, and his hair is styled at ear-length. His role in the story is primarily to exist as part of the rural family network that Taeko becomes involved with during her visit to the countryside, providing context for the community and familial ties that define life there. Information regarding his personality, deeper character motivations, a personal story arc, notable abilities beyond farming, or significant development throughout the narrative is not available in the provided search results.