Hayami was Sutaa of the boxing club for school days. Were introduced Kyouko from Ishizuka of the member by the meeting of clubs, and were absent in two people on the way back in a quiet park. As for the Kyouko, it was done Gang Bang then while were attacked by three men, and Hayami was hit and fell down unconscious. Both Kyouko and Ishizuka cursed Hayami coolly. Hayami who felt responsibility promised revenge to group of 3 inwardly. And the name began with the investigation of group of 3 who did not know the address, but unexpected case and sexual desire swirled in the future.
