[1] He is known mostly for founding the Haiyūza theatre company, and translating and directing the works of Bertolt Brecht in post-World War II Japan.

Japanese vigilantes roamed the streets, and accused, beat, and killed people they suspected of being Korean in what became the Kantō Massacre.

Afterward, my friends suggested that I take “Senda Koreya” (that is, "a Korean in Sendagaya") as my pen name.Senda was a leader in the modern theater movement in Japan, helping found the Haiyuza Theatre Company, and performing works that "bridged the gap from age-old traditional theater to politically oriented avant-garde and modern works".

[4] To supplement his income, in 1930 Senda founded the design studio Tomoe in Berlin, with the painter Osuke Shimazaki, lacquer artist Kotaro Fukuoka, photographer Hiroshi Yoshizawa, and Bauhaus students Iwao Yamawaki and Michiko Yamawaki, a photographer and architect, and a textile artist, respectively.

The studio produced posters, gift-wrap paper and leaflets, and undertook window dressing and interior design for Japanese restaurants.