The three, Iris and Aegis the elf and Ursula the dragon were "helping" teacher who worried about making children with them every day. Not good as a teacher, above all. One of the invitations from Iris comes to him who is worried.

"Teacher, can you come to my room this weekend?"

What came into his eye when he came to the room was iris in swimsuit. They planned to entertain him so that the number of "help" is not reduced. Homeroom teacher who is upset by the situation in which the body of innocent girls approache. His reason is on the verge of collapsing due to the soft feeling of stroking the whole body and the lovely pant voice echoing in his ears. Ursula, Aegis, and even Iris were exposing their nasty instincts...