S.S. Astro(教艦ASTROKyōkan ASTRO, lit. Teach-Warship Astro) is a Japanese four-panel comic strip manga by Negi Banno about the lives of female teachers within a school at which they teach. The "Astro" in the title is actually an acronym abbreviating "Asahio Sogo Teacher's ROom", alluding to the school's name Asahio Sogo. The original title, Kyōkan Astro, plays on the fact that kyōkan(教官) is 'instructor' in Japanese, but the title uses the kanji kan(艦) meaning 'warship' in place of kan(官) meaning 'government service'. The manga started serialization in Houbunsha's seinen manga magazine Manga Time Kirara Carat on February 24, 2005, and the first bound volume was released on February 27, 2007. However, the manga has not appeared in the magazine since November 28, 2007. Yen Press licensed the se