Ichirō appears as a supporting character in Little Charo 4: Eigo de Aruku New York. He is established as Shota's father, a role that originated in the video game Little Charo: Travels in English! During the events of this story, Ichirō travels to New York accompanied by a film director named Tomoko, where he works as a photographer. His son, Shota, remains in Japan to participate in an important football match. No further information is available regarding his personality, deeper motivations, character development, specific role in the narrative beyond these established facts, or any notable abilities outside his work as a photographer.