A beautiful teacher who wanted to work in the same workplace as her longing teacher, and was assigned to a school where girls were not allowed, disguised as men. She looks like a man, but she's a woman in body and soul. In a slightly naughty and unconventional way, Iku solves the school's problems while becoming "only when I'm having sex, my voice is a woman". School entertainment depicting the activities of such a great teacher, a scheme of a slutty teacher who slipped into a boy's school where women are not allowed, all 5 volumes.