(Quartet ☆ Score ♪ 6) [Yukimushi (Tochi Yasai)] Pillow Talk (Uta no Prince-sama)
(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome)
Nayamashi Qartetto 2 Wa Rinkanhen
(C78) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 1 & 2 Full Color Soushuuhen (Seto no Hanayome) [English]
[Stapspats (Various)] Pocket Quartet (Pokémon X and Y) [English] [Doujins.com] [Digital]
Momoiro Quartet 4 ever
(C93) [Bijutsubu (Shiduki Michiru)] Euphobian no Hibiki Quartet - Euphobian will resound. (Hibike! Euphonium)
Momoiro Quartet 4.5
Nayamashi no Mousou Shoujo
(C85) [FreeStyleQuartet (Kuusou)] Gohoushi Okami To Wakasama To [Chinese] [古龙龙汉化]
Clover Quartet Lolic!
Quartett!全原画集
Nayamashii Fighters
(C90) [OkayuShop (Okayu)] Nayamashi no Mousou Shoujo (Granblue Fantasy)
(C93) [Horizontal World (Matanonki)] Momoiro Quartet 4 ever (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化组]
Momoiro Quartet x Quartet
(Quartet Score 4) [Inukare (Inuyashiki)] Mairasu Complex (Uta no Prince-sama)
[Coffee Chazuke (Genjirou)] Baquartet Joukyou Fumei (Touhou Project) [Digital] [English] [hardcase8translates]
Bokoro Quartet 3
(C92) [Yuunabe Shinkouchuu (Tanabe Kyou)] Loli Quartet (Bakemonogatari)
(C93) [Horizontal World (Matanonki)] Momoiro Quartet 4 ever (THE IDOLM@STER CINDERELLA GIRLS)
(C91) [Horizontal World (Matanonki)] Momoiro Quartet 2+ (THE IDOLM@STER CINDERELLA GIRLS) [English] [ATF]
Love Quartet
(CT11) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Keishi Soukan | Superintendent Incest Tease (Seto no Hanayome) [English] {CGrascal}
(CT13) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English] [CGrascal] [Decensored]
(C94) [Horizontal World (Matanonki)] Momoiro Quartet 4.5 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]
(C93) [Bijutsubu (Shiduki Michiru)] Euphobian no Hibiki Quartet - Euphobian will resound. (Hibike! Euphonium) [Chinese] [透明声彩汉化组]
(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English] {CGRascal}
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS)
[FreeStyleQuartet (Kuusou, Schran)] Kadan no Himitsu
(C76)[Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 3 Cosplay Hen (Seto no Hanayome)
(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]
(C92) [Yuunabe Shinkouchuu (Tanabe Kyou)] Loli Quartet (Bakemonogatari) [English] [Brolen]
(C76) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 3 Cosplay Hen (Seto no Hanayome) [English]
[Divine Fountain (Koizumi Hitsuji)] Marugoto Baquartet (Touhou Project) [Digital]
(C91) [Avalanche (ChimaQ)] Baquartet to Otona no Omamagoto! (Touhou Project)
[Littlewitch]無料配布本 Quartett! tone (VISUAL PREVIEW)
(C85) [FreeStyleQuartet (Kuusou)] Gohoushi Okami To Wakasama To
(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute | Peach Colored Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS) [English] [ATF]
(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English]
(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS)
Uniorythm Quartett Visual Fanbook [Incomplete]
Baquartet Joukyou Fumei
(C87) [Gainamon (Natsu no Koucha)] Sakusei Quartet (Touhou Project) [English] {biribiri}
Nayamashi Quartet 1 & 2 Full Color Soushuuhen
(C92) [Opaque (Futou Ryouko)] Cinderella Assort vol. 5 ~Sayonara Magiquartet! Niji ga Kieta Hi~ (THE IDOLM@STER CINDERELLA GIRLS)
Loli Quartet
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS) [English] [ATF]
(C91) [Avalanche (ChimaQ)] Baquartet to Otona no Omamagoto! (Touhou Project) [Chinese] [oo君個人漢化]
[H-net (HiRo)] Patchouli to Shokushu to Shiri Ana to (Touhou Project) [Digital]
(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome)
[FreeStyleQuartet (Kuusou, Schran)] Boku no chiisana Oyomesan
Pocket Quartet
(C87) [FreeStyleQuartet (Kuusou, Schran)] Seiai Hosyuu Zyugyou
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS)
(C86) [FreeStyleQuartet (Kuusou)] Ari To Kirigirisu
(C91) [Horizontal World (Kinnotama)] Momoiro Quartet 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [魔狗狗个人汉化]