His father Ueki, Tessho was a Buddism monk who closely acquainted with
Japanese Socialist group in early 20th century. Later , Tessho as a
priest of a small temple, supported and fought with Japanese
discriminated people, called as "Buraku-Min" for their emancipation,
also having arrested and jailed during World War II , regarded as he
had "dangerous" thought against the militaristic Japan in those
days.