All high school students fantasize about a young and beautiful female teachers, but Kei Kusanagi came to the point that clearly presented as their new " cool " on behalf of Mizuho Kaji night before came down from heaven in a spaceship and pulled him out of the lake,where the unfortunate fall by surprise. And since the birth of the Kaye guy painful and just that - loses consciousness, then, without artificial respiration, clear case, there were... And the most interesting - all of it was true! Mizuho - sensei, of course, good and beautiful, and the half- dugout, but the position still - secret agent of the Galactic Federation,first of all, must by professional secrecy. But how to take control of a reliable young Japanese guy? And just - marrying him, the more so as Kay, a student of the first class of high school, was suddenly... adult. Only here, although according to the law, how to explain the situation of many students, friends and neighbors,are not aware of the difficult circumstances of each of the " married"? But Kay, little getting used to a new role, a firm grasp one thing - love will overcome all obstacles, even the phenomenon of galactic Tiffany!