Atlantis Investigation
[NO.Gomes] Gravity Die - TS School Infiltrating Investigator: The Shameful Stripshow (TS Gakuen Sennyuu Sousakan: Chijoku No Stripshow) (English)
[Matsuyama Hayate, Hitotsuki Katagiri] Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
Himmel-taso ni oshioki suru hon
- Warui ko Unicorn
[QUDA] Undercover Drug Investigator Monica & Jita
(C75) [Nounai Kanojo (Kishiri Toworu)] Zoku Kyouran Kazoku Yawa (Kyouran Kazoku Nikki) [Digital]
Chichi Katajikena Sousakan | Shameless Breast Investigator
(C84) [Peθ (Mozu)] Closed Sky Vol. 1&2 (Strike Witches)
[Sawada Daisuke] Hitoduma Tantei no Chinkenpo | Married Investigator's Chinkenpo (COMIC Shingeki 2011-01) [English] [SaHa]
Closed investigation journal
[Sakaki Naomoto] Tokumei Chikan Otori Sousahan | Special Molester Decoy Investigation Squad [English] {Doujins.com}
Galaxy Investigation Agent Eira
Nyotaika Sousa sarechimatta | Gender Bender Investigation
[Sakaki Naomoto] Tokumei Chikan Otori Sousahan | Special Molester Decoy Investigation Squad Ch. 1-6 [English] {Doujins.com}
Busty Married Woman Investigator Yuka
Uwasa Saguri Zenpen | Rumor Investigation - Part One
[Sakaki Naomoto] Tokumei Chikan Otori Sousahan Ch.1 | Special Molester Decoy Investigation Squad Ch.1 [English] {Doujins.com}
Uwasa Saguri Kouhen | Rumor Investigation - Part Two
[Kloah] Chichi Katajikena Sousakan | Shameless Breast Investigator (COMIC Anthurium 013 2014-05) [English] {Pluto}
[Sakaki Naomoto] Tokumei Chikan Otori Sousahan | Special Molester Decoy Investigation Squad Ch. 1-3 [English] {Doujins.com}
[eltole] Busty Married Woman Investigator Yuka (ANGEL Club 2018-03) [Chinese]
21Kaiten Maid no Tasogare
[Hiratsura Masaru] Sennyuu Sousakan Erika | Sneaking Investigator Erika (COMIC SIGMA 2008-03 Vol. 17) [English] [SaHa]
[Yoru no Oto] Woman Investigator K - Mayaku Sousa Hen | Woman Investigator K - Narcotics Investigation (Slave Heroines Vol. 9) [English] {doujin-moe.us}
Tokumei Chikan Otori Sousahan | Special Molester Decoy Investigation Squad Ch. 1-2
[Namanama Shandy Gaff (nf4)] Atlantis Investigation (Amelia Watson, Gawr Gura) [Digital] [English]
[Jamming] Kyonyuu Sousa-kan Yura - Bitch Order | Yura Big Boobs Investigator - Bitch Order [English] [Raknnkarscans]
Fellatio Kenkyuubu | Departamento de Investigación de las Felaciones Ch. 1
Gyaru Hakase no Himitsu Kenkyuu | Gyaru Professor’s Secret Investigation
[Nakami Yoshikage] "Sudden Shock! Female Investigator Asuka"
Taima Sousakan Ayano (Demon Investigator Ayano) [ENG]
Mahou Tokusou Greedia4 - Magical Investigator Greedia Final
Sudden Shock! Female Investigator Asuka