東立出版社
A total of 140 chapters were published in Japan by Kodansha in the "seinen" (aimed at younger adult men) manga magazine "Monthly Afternoon" between June 1994 to February 2006. The serial chapters were collected in 14 "tankōbon" volumes by Kodansha under the Afternoon KC imprint. In Q4 of 2009 Kodansha started a reprint of the "tankōbon" volumes. It is licensed in Korea under the title ("Café Alpha"), in Indonesia by M&amp;C Comics, in Taiwan by Tong Li Publishing, and in France by under the title .