[Divine Fountain (Koizumi Hitsuji)] Marugoto Baquartet (Touhou Project) [Digital]
[Kuuchuusen (mko)] Omoide (Kantai Collection -KanColle-) [Digital]
[Kira Hiroyoshi] Chijo no Ana
[Stapspats (Various)] Pocket Quartet (Pokémon X and Y) [English] [Doujins.com] [Digital]
(C81) [Hanamiduki (Miduki Shou)] Miki-teki☆☆Lesson (THE iDOLM@STER) [Digital]
Nayamashi Keishi Soukan
(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [Decensored]
(Puniket 12) [PASTEL WING (Kisaragi-MIC)] Koniro no Ehon -Sukumizu Quartet- (ToHeart 2)
[FreeStyleQuartet (Kuusou, Schran)] Kadan no Himitsu
Loli Quartet
Maseo no Takurami - Musuko no Tomodachi to no Irogoto ga Musuko no Tomodachi ni Bareta Tsuma
Love Quartet
(C93) [Bijutsubu (Shiduki Michiru)] Euphobian no Hibiki Quartet - Euphobian will resound. (Hibike! Euphonium)
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS)
(Quartet Score 5) [@s (akir@)] Change! (Uta no Prince-sama)
Baquartet to Otona no Omamagoto! | Playing Grown-Up with the Idiot Four!
SHITARA-BON
Koroshiya Shoujo
Haha no Himitsu | Secret of Mother Ch. 4-5
(C92) [Yuunabe Shinkouchuu (Tanabe Kyou)] Loli Quartet (Bakemonogatari) [English] [Brolen]
Uniorythm Quartett Visual Fanbook [Incomplete]
(C78) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 1 & 2 Full Color Soushuuhen (Seto no Hanayome) [English]
(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome) [Decensored]
10-okuen Tousen Shita node, Tanetsuke Shiminken o Katte mita.
僕を2年間想い続けて同じ大学に入学してきた内気な爆乳後輩ちゃんとのいちゃラブセックス
(C90) [OkayuShop (Okayu)] Nayamashi no Mousou Shoujo (Granblue Fantasy)
[Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 2 Rinkan Hen(Seto no Hanayome) [Decensored]
(CT13) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English] [CGrascal] [Decensored]
(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute | Peach Colored Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS) [English] [ATF]
Existence Disappeared! My Impregnation Harem
Euphobian no Hibiki Quartet - Euphobian will resound.
(C87) [Gainamon (Natsu no Koucha)] Sakusei Quartet (Touhou Project) [Chinese] [CE家族社]
[Littlewitch]無料配布本 Quartett! tone (VISUAL PREVIEW)
[Ebi Fly] Yume de aetara 3 | Meet in your dream 3
(CT11) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Keishi Soukan | Superintendent Incest Tease (Seto no Hanayome) [English] {CGrascal}
(C86) [my pace world (Kabocha Torte)] sleeping cutie ~Nemureru Shoujo to Sei no Majuu~ (Pokémon Black and White)
Shoujiki na Karada | Honest Body
[FreeStyleQuartet (Kuusou, Schran)] Boku no chiisana Oyomesan
[yui7] Catch! (Mebae Vol.3 - Vivid Girls Love Anthology) [English] [Yuri-ism]
Quartett!全原画集
Momoiro Quartet 3 TRIbute
Quartet Phantom
Momoiro Quartet 4 ever
(C93) [Horizontal World (Matanonki)] Momoiro Quartet 4 ever (THE IDOLM@STER CINDERELLA GIRLS)
(C94) [Horizontal World (Matanonki)] Momoiro Quartet 4.5 (THE IDOLM@STER CINDERELLA GIRLS)
Nayamashi Quartette
(C85) [FreeStyleQuartet (Kuusou)] Gohoushi Okami To Wakasama To
Nayamashi no Mousou Shoujo
(C75) [MünchenGraph (Kita Kaduki)] atoha anata gaki meru koto (Jigoku Shoujo)
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [魔狗狗个人汉化]
(Quartet Score 6) [Inukare (Inuyashiki)] Uchi no neko ga Ichiban kawaii 2 (Uta no Prince-sama)
(C78) [Mebius no Wa (Nyx)] Bokoro Quartet 3 (VOCALOID)
Baquartet Joukyou Fumei
(Quartet ☆ Score ♪ 6) [Yukimushi (Tochi Yasai)] Pillow Talk (Uta no Prince-sama)
Nayamashi Quartet 3
(C91) [Horizontal World (Kinnotama)] Momoiro Quartet 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]
(C91) [Horizontal World (Kinnotama)] Momoiro Quartet 2 (THE IDOLM@STER CINDERELLA GIRLS)
Clover Quartet Lolic!
Momoiro Quartet 4 ever | 복숭아 빛 콰르텟 4 ever
Class no Ohime-sama, Shiawase Mesubuta ni Nariagaru.
(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome) [English] [Decensored]
(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome)
(Tokimeki Party Sensation Premium) [elf.k-ya (elf.k)] Kurumi Miracle Quartet (Kurumi Miracle)
(C66) [Akai Marlboro (Aka Marl)] Yuni-san to Mei-tan to
(C91) [Horizontal World (Kinnotama)] Momoiro Quartet 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [魔狗狗个人汉化]
Momoiro Quartet x Quartet
(C72) [RPG COMPANY2 (Hoshino Fuuta)] Pu-ri ka Purirara Hyper Princess (Demashita Power Puff Girls Z, Fushigi Boshi no Futago Hime, Ojamajo Doremi)
(C76)[Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 3 Cosplay Hen (Seto no Hanayome)
Nayamashi Quartet 3 Cosplay Hen
(C91) [Avalanche (ChimaQ)] Baquartet to Otona no Omamagoto! (Touhou Project) [Chinese] [oo君個人漢化]
Pocket Quartet
(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome)
(C87) [Aozora Shoujo (Shirane Taito)] LOLI QUARTETT! (THE IDOLM@STER) [Chinese] [脸肿汉化组]
(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome) [English] [CGRascal]
(C90) [OkayuShop (Okayu)] Nayamashi no Mousou Shoujo (Granblue Fantasy) [English]
(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English]
(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]
Nayamashii Fighters
(C87) [Aozora Shoujo (Shirane Taito)] LOLI QUARTETT! (THE IDOLM@STER)
(C87) [Aozora Shoujo (Shirane Taito)] LOLI QUARTETT! (THE IDOLM@STER) [English] [Flatopia]
(C87) [Gainamon (Natsu no Koucha)] Sakusei Quartet (Touhou Project) [English] {biribiri}
Kuroneko Choco Ice 7
Nayamashi Qartetto 2 Wa Rinkanhen
Yame Haha | Resignee Mother
(C76) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 3 Cosplay Hen (Seto no Hanayome) [English]
[AIR BOX (YU-TA)] Watashi to Sexross Shiyo? (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]
[Shimohara] Tokyo Black Box -Do-S Kyoujyu no Nanjiken Report- Case.4 [Digital]