SNIS-283 Secret investigator woman caught in an incest trap Mai Usami

I don't want my beloved brother, who was working 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 a secret investigator and joins the evil organization Shave on her own. - However, Mai is captured by the enemy and is injected with a lewd drug and turned into a meat slave. - This is S-1's most popular series, a full-fledged drama depicting a female investigator! - !