SNIS-283 Secret Investigator Woman Trapped in 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 agent and joins the evil organization Shave on her own. However, she is captured by the enemy, who injects her with a lewd drug and turns her into a meat slave. This is S-1's most popular series, a full-fledged drama depicting a female investigator! !