Tsukasa, a former elite investigator of the Special Investigation Bureau, was demoted and assigned to crack down on a molestation group. "I can solve a case like this in a day..." he was eager to prove his strength and return to the Special Investigation Bureau. He thought it was an "easy mission" and he was going to use himself as a decoy to catch them all in one fell swoop, but... The overwhelming number of people and close cooperation meant that he was gang-raped until his pride and body were completely worn down!