(C78) [Mebius no Wa (Nyx)] Bokoro Quartet 3 (VOCALOID)
(C87) [Gainamon (Natsu no Koucha)] Sakusei Quartet (Touhou Project) [Chinese] [CE家族社]
(C89) [HellDevice (nalvas)] Mesuinu Marking (Battle Spirits Burning Soul) [English] {Hennojin}
Momoiro Quartet x Quartet
Uniorythm Quartett Visual Fanbook [Incomplete]
(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [Decensored]
(C92) [Yuunabe Shinkouchuu (Tanabe Kyou)] Loli Quartet (Bakemonogatari) [Chinese] [萝莉援助汉化组]
(C91) [Avalanche (ChimaQ)] Baquartet to Otona no Omamagoto! | 和笨蛋四人组玩成人的过家家游戏! (Touhou Project) [Chinese] [Kanade汉化组]
Quartett!全原画集
(CT11) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Keishi Soukan | Superintendent Incest Tease (Seto no Hanayome) [English] {CGrascal}
(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome) [English] [CGRascal]
SHS
(Quartet Score 5) [@s (akir@)] Change! (Uta no Prince-sama)
Quartet Phantom
[Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 2 Rinkan Hen(Seto no Hanayome) [Decensored]
(C76)[Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 3 Cosplay Hen (Seto no Hanayome)
[NAONO Bohra] Jouzetsuna Yubi
Mother and Sekbut !!
Nayamashi Quartet 3
Hikkoshita Saki no Rinjin wa, Oppai no Ookina Totemo Ecchi na Okaa-san deshita.
Lady Garden Ch.1-36
Tasukete! Hayama-kun
(C86) [FreeStyleQuartet (Kuusou)] Ari To Kirigirisu
Chokyogakuen Chapter 3
Ran
Ayako no Nayamashii Jijou to Jouji
[FreeStyleQuartet (Kuusou)] Kimi Tono Kyori
Kaname Date #9
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [魔狗狗个人汉化]
(C87) [Aozora Shoujo (Shirane Taito)] LOLI QUARTETT! (THE IDOLM@STER) [English] [Flatopia]
Mitsumine wa Hatachi ni Narimashita.
(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome) [English] [Decensored]
(C87) [Gainamon (Natsu no Koucha)] Sakusei Quartet (Touhou Project)
(C95) [Horizontal World (Matanonki)] Momoiro Quartet x Quartet (THE IDOLM@STER CINDERELLA GIRLS)
(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute | Peach Colored Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS) [English] [ATF]
(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]
(C91) [Horizontal World (Kinnotama)] Momoiro Quartet 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [魔狗狗个人汉化]
[Fumihiro] Sekizou ni Natta Shoujo (2D Comic Magazine Joutai Henka de BAD END! Vol. 1) [Chinese] [無毒漢化組] [Digital]
(C88) [PLANT (Tsurui)] Oshiete MY HONEY 2 Zenpen (THE IDOLM@STER)
Nayamashi no Mousou Shoujo
Baquartet Joukyou Fumei
Nayamashii Fighters | Frustrated Fighters
(C87) [FreeStyleQuartet (Kuusou, Schran)] Seiai Hosyuu Zyugyou
(C79) [Basutei Shower (Katsurai Yoshiaki)] SISTER FRIEND (Ore no Imouto ga Konna ni Kawaii Wake ga Nai)
(C92) [Yuunabe Shinkouchuu (Tanabe Kyou)] Loli Quartet (Bakemonogatari) [English] [Brolen]
(C66) [Akai Marlboro (Aka Marl)] Yuni-san to Mei-tan to
[Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 1,2 Full Color Soushuuhen (Seto no Hanayome) [English]
Momoiro Quartet 4 ever | 복숭아 빛 콰르텟 4 ever
Momoiro Quartet 2+
[Yagami Shuuichi] Oshioki Suru yo step4 (COMIC Penguin Club Sanzokuban 2015-10) [Chinese] [绅士仓库汉化]
(C94) [Horizontal World (Matanonki)] Momoiro Quartet 4.5 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]
Love Quartet
Perfect Half Ch.1-40.5
(C90) [OkayuShop (Okayu)] Nayamashi no Mousou Shoujo (Granblue Fantasy)
31 KNOTS!
(Puniket 12) [PASTEL WING (Kisaragi-MIC)] Koniro no Ehon -Sukumizu Quartet- (ToHeart 2)
ママハメセックス
(C93) [Bijutsubu (Shiduki Michiru)] Euphobian no Hibiki Quartet - Euphobian will resound. (Hibike! Euphonium)
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS)
(C92) [Opaque (Futou Ryouko)] Cinderella Assort vol. 5 ~Sayonara Magiquartet! Niji ga Kieta Hi~ (THE IDOLM@STER CINDERELLA GIRLS)
Nayamashi Keishi Soukan
(C87) [Aozora Shoujo (Shirane Taito)] LOLI QUARTETT! (THE IDOLM@STER)
EroKosu Vol.14
(C91) [Konikidou (Combat Sko)] Alicia-mama ga Ore no Yome ni Natta Hon (Granblue Fantasy)
(CT11) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Keishi Soukan (Seto no Hanayome)
(C91) [Avalanche (ChimaQ)] Baquartet to Otona no Omamagoto! (Touhou Project)
Momoiro Quartet 4 ever
(C91) [Horizontal World (Matanonki)] Momoiro Quartet 2+ | Peach Colored Quartet 2+ (THE IDOLM@STER CINDERELLA GIRLS) [English] [S.T.A.L.K.E.R.]
Loli Quartet
Momoiro Quartet 2.5
[Ponkotsu Works] Ikuno Plus (To Heart 2)
Okinawa Slave Island The COMIC 03
Clover Quartet Lolic!
Momoiro Quartet 4.5
[Maumen] Koakuma ageman (COMIC BAVEL 2017-03) [Chinese] [無邪気漢化組]
(Quartet ☆ Score ♪ 6) [Yukimushi (Tochi Yasai)] Pillow Talk (Uta no Prince-sama)
En
(C91) [Avalanche (ChimaQ)] Baquartet to Otona no Omamagoto! (Touhou Project) [Chinese] [oo君個人漢化]
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS) [English] [ATF]
Nayamashii Fighters
Web Manga Bangaichi Vol. 16
[STAPSPATS/背水の陣/芋。/発光きむち] Pocket Quartet (pokemon) [Digital]
(C94) [Horizontal World (Matanonki)] Momoiro Quartet 4.5 (THE IDOLM@STER CINDERELLA GIRLS)
(C85) [FreeStyleQuartet (Kuusou)] Gohoushi Okami To Wakasama To
(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English] {CGRascal}
(Tokimeki Party Sensation Premium) [elf.k-ya (elf.k)] Kurumi Miracle Quartet (Kurumi Miracle)
(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS)