[1] In 1935, he received the first Naoki Prize for his short stories Tsuruhachi Tsurujirō and Fūryū fukagawa uta and the novella Meiji ichidai onna.

[1] The novel Aizen katsura, a melodramatic love story between a nurse and a doctor, was serialised between 1937 and 1938 and made into highly popular film starring Kinuyo Tanaka and Ken Uehara.

[1] Starting in the 1930s, Kawaguchi adapted other writers' works for films of director Kenji Mizoguchi such as The Story of the Last Chrysanthemums (1939).

Mizoguchi in return adapted works by Kawaguchi, such as Ayen kyo for The Straits of Love and Hate (1937).

[1] He received the Yoshikawa Eiji Prize for his novel Shigurejaya Oriku about the owner of a famous Tokyo teahouse.