Define Quartet

(SC48) [39xream (Suzume Miku)] Undefined Fantastic Orgasm (Touhou Project)

Euphobian no Hibiki Quartet - Euphobian will resound.

(C87) [FreeStyleQuartet (Kuusou, Schran)] Seiai Hosyuu Zyugyou

(C94) [Horizontal World (Matanonki)] Momoiro Quartet 4.5 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]

(C85) [FreeStyleQuartet (Kuusou)] Gohoushi Okami To Wakasama To [Chinese] [古龙龙汉化]

(Air Reitaisai 8) [SnowGale (nibi)] Undefined★Love Splash! (Touhou Project)

(C78) [Mebius no Wa (Nyx)] Bokoro Quartet 3 (VOCALOID)

(Quartet ☆ Score ♪ 6) [Yukimushi (Tochi Yasai)] Pillow Talk (Uta no Prince-sama)

[Akatukiya (Akatuki Myuuto)] Nanaka no Rakuen 2 ~Inaka no Gakkou de Bishoujo Harem~ Onsen de Arai Ikko Hen [Digital]

(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS)

(C93) [Bijutsubu (Shiduki Michiru)] Euphobian no Hibiki Quartet - Euphobian will resound. (Hibike! Euphonium) [Chinese] [透明声彩汉化组]

(C87) [Gainamon (Natsu no Koucha)] Sakusei Quartet (Touhou Project) [English] {biribiri}

Momoiro Quartet 2.5

(C91) [Horizontal World (Matanonki)] Momoiro Quartet 2+ | Peach Colored Quartet 2+ (THE IDOLM@STER CINDERELLA GIRLS) [English] [S.T.A.L.K.E.R.]

Quartet Phantom

[FreeStyleQuartet (Kuusou)] Kimi Tono Kyori

(C87) [Gainamon (Natsu no Koucha)] Sakusei Quartet (Touhou Project)

Momoiro Quartet x Quartet

(Puniket 12) [PASTEL WING (Kisaragi-MIC)] Koniro no Ehon -Sukumizu Quartet- (ToHeart 2)

Clover Quartet Lolic!

(Reitaisai 7) [Kinokonomi (kino, konomi)] Nue to Byakuren to Shoutai Fumei no XXX | Nue, Byakuren, and the Undefined XXX (Touhou Project) [English] [CGrascal]

(C87) [Aozora Shoujo (Shirane Taito)] LOLI QUARTETT! (THE IDOLM@STER) [English] [Flatopia]

(C92) [Horizontal World (Matanonki)] Momoiro Quartet 3 TRIbute | Peach Colored Quartet 3 TRIbute (THE IDOLM@STER CINDERELLA GIRLS) [English] [ATF]

(C97) [Rurunoya (Rurukichi)] Isekairu Biyori (Isekai Quartet) [English] [TheCrappyTranslators]

(C97) [Rurunoya (Rurukichi)] Isekaru Biyori (Isekai Quartet) [English] [EHCOVE]

(C78) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 1 & 2 Full Color Soushuuhen (Seto no Hanayome) [English]

(C91) [Horizontal World (Kinnotama)] Momoiro Quartet 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]

(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]

(SC48) [39xream (Suzume Miku)] Undefined Fantastic Orgasm (Touhou Project) [English] {pesu}

(C90) [Horizontal World (Kinnotama)] Momoiro Quartet (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [绅士仓库汉化]

Baquartet Joukyou Fumei

(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English] {CGRascal}

Momoiro Quartet + Momoka Yoitsuma Horizontal World 2015~2022 Momoka Matome

(Tokimeki Party Sensation Premium) [elf.k-ya (elf.k)] Kurumi Miracle Quartet (Kurumi Miracle)

(C92) [Yuunabe Shinkouchuu (Tanabe Kyou)] Loli Quartet (Bakemonogatari) [Chinese] [萝莉援助汉化组]

(CT13) [Hikakuteki Simple na Panty (Imonade Ryouchou)] Nayamashi Quartet 2 Rinkan Hen (Seto no Hanayome) [English]

(Quartet Score 4) [Inukare (Inuyashiki)] XXX ME (Uta no Prince-sama)

[Chijoku An] Osu Inu Ni Metorareta Otoko ~ Teishuku Na Hanayome Inu No Sodatekata ~

Nayamashi Quartet 3

(Quartet Score 5) [@s (akir@)] Change! (Uta no Prince-sama)

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Nani yo sore? Bakkajanai no!

Nayamashi Quartet 3 Cosplay Hen

(C91) [Horizontal World (Matanonki)] Momoiro Quartet 2+ (THE IDOLM@STER CINDERELLA GIRLS) [English] [ATF]

(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome) [Decensored]

(Reitaisai 9) [komorikiri. (Urin)] Undefined Ecstasy (Touhou Project)

Euphobian no Hibiki Quartet - Euphobian will resound.

(C87) [Aozora Shoujo (Shirane Taito)] LOLI QUARTETT! (THE IDOLM@STER)

(Quartet ☆ Score ♪ 6) [Ayu 30% Hiku (Kuma)] Embrasse Moi (Uta no Prince-sama)

Nayamashi Quartet 1 & 2 Full Color Soushuuhen

Loli Quartet

Henshin! Choco Quartet Ruby

(C93) [Bijutsubu (Shiduki Michiru)] Euphobian no Hibiki Quartet - Euphobian will resound. (Hibike! Euphonium)

Bokoro Quartet 3

(C92) [Yuunabe Shinkouchuu (Tanabe Kyou)] Loli Quartet (Bakemonogatari)

Nayamashi Quartette

(C79) [Toriniku Seikatsu] Undefined Justice (Touhou Project)

(C94) [Horizontal World (Matanonki)] Momoiro Quartet 4.5 (THE IDOLM@STER CINDERELLA GIRLS)

(Quartet Score 4) [Inukare (Inuyashiki)] Mairasu Complex (Uta no Prince-sama)

Momoiro Quartet 4 ever | 복숭아 빛 콰르텟 4 ever

Uniorythm Quartett Visual Fanbook [Incomplete]

(C86) [FreeStyleQuartet (Kuusou)] Ari To Kirigirisu

(CT12) [Hikakuteki Simple na Panty (Ouse Tsukusu)] Nayamashi Quartet (Seto no Hanayome) [English] [Decensored]