Teiichiro Sugi was on the staff of Yubin Hochi (newspaper) at Tokyo and then became drama critic for Mainichi Shimbun (newspaper). Together with Onitaro Oka played an important role in the Bunshi-geki (writers' drama) of Wakaba Dramatic Society held at Kabukiza Theater (1905).
His play Naikai-Ochi was staged at the society's second performance (1906); he then changed the name of the society to Mainichi Shimbun Engekikai (Dramatic Society of Mainichi Shimbun). Being a good actor himself, he was especially skilled in performing in Kumagai (Story of Naozane Kumagai). The author of Butai Kansho Tebiki (Manuals of Appreciation of Drama).