Most protagonists of Kurumada's works bear a resemblance to Ryūji, as Kurumada subscribes to the revered Osamu Tezuka's Star System (a stable cast of characters) technique. The same process is done with almost all the other characters from the series. Written and illustrated by Masami Kurumada, "Saint Seiya" was serialized in "Weekly Shōnen Jump" magazine from January 1, 1986 to November 19, 1990. The individual chapters were collected and published into 28 "tankōbon" volumes by Shueisha. The series has three main parts or acts: "Sanctuary Act" (volumes 1 to 13), "Poseidon Act" (volumes 14 to 18), and "Hades Act" (volumes 19 to 28). Volume 13 also contains a separate short story called . In addition to Japan the manga of Saint Seiya has been published since 1986 in various nations of the world and then translated into various languages including: Chinese (Taiwan), Filipino, Korean, Thai, Portuguese, English, Italian, French, Spanish, German. In addition to the original 28 "tankōbon" volumes, the series has been reissued several times. The first as 15 "aizōban" volumes in 1995, the "Collector's Version." The second reissue was 2001 "bunkoban", the "Library Version." The series was released again in 2003 in 19 volumes with art design images from the anime adaptation, and called the "Remix Version." The fourth reissue, in 22 volumes and called the "Complete Version", contains additional colored pages as well as colored armor schematics. Another "Remix Version" was published at the end of 2007 to coincide with the broadcast of Chapter Elysion of the anime. Another "Remix Version" was published at the end of 2012. The series is licensed in English in North America by Viz Media under the title "Saint Seiya: Knights of the Zodiac". Viz released the first collected volume of the series on January 21, 2004, and as of February 2, 2010 all twenty-eight volumes have been released. To celebrate 30 years of the original classic manga of Saint Seiya, in Akihabara (Tokyo) in June 2016 there will be a convention commemorating the historic series, with numerous commemorative gadgets on sale. For the 30 years of the classic manga Saint Seiya, has also opened a website official called seiya30th  A second exhibition commemorating the 30th anniversary of the manga by Masami Kurumada, will be held in Hong Kong in September 2016.