(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English] {CGRascal}
[Sakura no Hanabira (Kurumi Riko)] Sensei ga Bakunyuu Joshikousei-tachi to Love Love Rankou Dekitawake 2 (Senran Kagura)
Ane Yome Quartet Kanzenban
PACOPACO BUKKAKE SEX
[Coffee Chazuke (Genjirou)] Baquartet Joukyou Fumei (Touhou Project) [Digital] [English] [hardcase8translates]
Love Wheel Saishuuwa
(C76) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet 3 Cosplay Hen (Seto no Hanayome) [English]
(C70) [Yuugen Sangyou Sukima Kaze (Tanken wa ra 2)] D/I (D.Gray-man)
Uniorythm Quartett Visual Fanbook [Incomplete]
(C95) [Horizontal World (Matanonki)] Momoiro Quartet 2.5 (THE IDOLM@STER CINDERELLA GIRLS) [English] [MegaFagget]
(C93) [Bijutsubu (Shiduki Michiru)] Euphobian no Hibiki Quartet - Euphobian will resound. (Hibike! Euphonium) [Chinese] [透明声彩汉化组]
(C78) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 1 & 2 Full Color Soushuuhen (Seto no Hanayome) [English]
(C86) [FreeStyleQuartet (Kuusou)] Ari To Kirigirisu
(Puniket 12) [PASTEL WING (Kisaragi-MIC)] Koniro no Ehon -Sukumizu Quartet- (ToHeart 2)
[Kaname Aomame] Youkoso Yozakura Byouine 3 | Welcome to Yosakura Hospital 3 (COMIC Shingeki 2015-11) [English] =SNP=
(C91) [Avalanche (ChimaQ)] Baquartet to Otona no Omamagoto! (Touhou Project)
(C97) [Rurunoya (Rurukichi)] Isekaru Biyori (Isekai Quartet) [English] [EHCOVE]
[STAPSPATS/背水の陣/芋。/発光きむち] Pocket Quartet (pokemon) [Digital]
(C92) [Yuunabe Shinkouchuu (Tanabe Kyou)] Loli Quartet (Bakemonogatari)
Baquartet to Otona no Omamagoto! | Playing Grown-Up with the Idiot Four!
Marunomi Kyuushuu SEX Senran Kagura Hen
Love Wheel Ch. 4
(Quartet Score 4) [Inukare (Inuyashiki)] Mairasu Complex (Uta no Prince-sama)
(Tokimeki Party Sensation Premium) [elf.k-ya (elf.k)] Kurumi Miracle Quartet (Kurumi Miracle)
(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]
(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome) [Decensored]
LOVE HOTEL ni Ikimasenka? | Would you like to go to a LOVE HOTEL?
(C91) [Horizontal World (Kinnotama)] Momoiro Quartet 2 (THE IDOLM@STER CINDERELLA GIRLS)
(Quartet ☆ Score ♪ 6) [Ayu 30% Hiku (Kuma)] Embrasse Moi (Uta no Prince-sama)