SNIS-283 Secret Investigator Girl: Set Incest Trap Mai Usami

I don't want my beloved brother, who was undercover as a government agent, to be killed in front of me. In order to avenge her brother's death, the girl volunteers to become an undercover investigator, and she joins the evil organization Shave... However, when she is captured by the enemy, she is injected with her lewd drug and she is dropped into a meat slave. A full-fledged drama depicting a female investigator, S1's popular NO.1 series! !