Distinguished by his works depicting male–male sexual relations with heightened and exaggerated storylines, Yamakawa is best known for his manga Kuso Miso Technique, published in Bara-Komi in 1987.
Essentially no direct information about Yamakawa's life exists, as the artist has never made public appearances or statements, and published no works beyond his contributions to Barazoku in the 1980s.
[1] Most information about his life and career is sourced from Ito Bungaku, editor-in-chief of Barazoku, who himself lost contact with Yamakawa after the artist stopped contributing to the magazine.
[2][5] Itō was eventually pressured into ceasing publication of Yamakawa's manga, but nevertheless continued to accept submissions from the artist for several years, and paid him a manuscript fee even for works that went unpublished.
[1] An anthology of works by Yamakawa published in 2003 in response to the artist's new popularity quickly sold out two of its first print runs,[1] and by 2010 was in its ninth edition.