Born in Tokyo. Studied theater in the School of Letters, Arts and Sciences at Waseda University, and began making 8mm films. Has worked as a dance instructor, editor, film publicist, film crew member, and art school assistant, and develops visual art performances and sessions that transcend genres. Major works include The Rain (selected for the 1982 Pia FilmFestival), O-de-ka-ke Diary (Grand Prize at the 1989 Image ForumFestival), The Sleeping Flower (Special Jury Prize at the 1991 Image ForumFestival), and A Dandelion (Rosaceae) (1990 Ebiten golden director). Active in nurturing young talent as coordinator of arts events and workshops, and teaches at universities including Musashino Art University, Tama Art University, and at the Art and Architecture School of Waseda University.

Koguchi Utako was born in Tokyo in 1961. She has engaged in various activities mainly centering on the visual image, such as dance instruction, film, TV, commercials, music video, promotion videos, website design, publicity of foreign films, staffing film festivals, and writing. As a filmmaker, she has actively exhibited her works at film festivals and featured programs both in Japan and abroad, centering on the themes such as gender and views on life and death with live performances. She has also engaged in activities to support young filmmakers through workshops on filmmaking, film festivals, and educational institutions. She currently teaches at Musashino Art University, where she has engaged in producing filmmakers who won prizes at film competitions with their unique and cute works both in Japan and abroad. In 2014, she founded “The Poetry of Finless Porpoises/sunameri no uta” project, with young filmmakers, students, and local citizens in Ōmura City in Nagasaki, where she produced nine short films that were screened at various film festivals. She extended her field of interests into Southeast Asia in 2017 in addition to Europe. She was a director of Omura Amami International Student Film Festival in 2018, and a vice executive committee at the 14th Asia International Youth Film Festival in 2021.