Crime Scene Investigation - Takeshi Matsu (Bara)
[Anthology] Aniparo Miki 2 (Various)
[Sakaki Naomoto] Tokumei Chikan Otori Sousahan | Special Molester Decoy Investigation Squad Ch. 1-6 [English] {Doujins.com}
Decoy Investigator Kyouka: Cosplay Party Infiltration
Heroine Crisis
Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
[Namanama Shandy Gaff (nf4)] Atlantis Investigation (Amelia Watson, Gawr Gura) [Chinese] [白上フブキ.eth×真不可视汉化组] [Digital]
Kyonyuu Sousa-kan Yura - Bitch Order | Yura Big Boobs Investigator - Bitch Order Ch. 1
[Anthology] Bishoujo Doujinshi Anthology 19 (Various)
(BEST×SEASON) [tapeta (Mebae)] Zenbu Choudai! (THE IDOLM@STER SideM)
Shippai! Otori Sousa | Failure! Investigation Bait
(Stand Up! 11) [Gum Tape Type (Nauchi)] monopolistic (Cardfight!! Vanguard)
[Chuuka Naruto] Onna Sousakan Choukyou Rensa | Woman Investigator Training Link [English] [SaHa]
[Ziploc (Shinachiku)] Senpai to Kouhai no Nayami (Shotapetit) [English] {Shotachan} [Digital]
Closed investigation journal
CLUB DE INVESTIGACIÓN CIENTÍFICA
[Matsuyama Hayate, Hitotsuki Katagiri] Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
Tapestry Ch.1-2
Busty Married Wife Infiltrates Investigator·Aya
[eltole] Busty Married Woman Investigator Yuka (ANGEL Club 2018-03) [Chinese]
Uwasa Saguri Zenpen | Rumor Investigation - Part One
[Sawada Daisuke] Hitoduma Tantei no Chinkenpo | Married Investigator's Chinkenpo (COMIC Shingeki 2011-01) [English] [SaHa]
(C62) [Maguro Oukoku (Sentape)] Maguro Kingdom 2002 (Gundam Wing)
[Kloah] Chichi Katajikena Sousakan | Shameless Breast Investigator (COMIC Anthurium 013 2014-05) [English] {Pluto}