Houteishiki

[Azuki Kurenai] Midara no Houteishiki - The Equation of the Immoral [English] [hen-toy]

[Kinako Gyuu Nyuu (Tomoharu)] Koi Suru Houteishiki (Ginga e Kickoff!!)

(C59) [Tomoyosama (Kayama Akihiro, Ozawa Hiroe)] Tomoyo No Yasashii Houteishiki (Cardcaptor Sakura)

Kannou no Houteishiki (decensored)

Kemonogatari

[Misaki Yukihiro] Nikuhisyo Yukiko 22

(C87) [Newton no Ringo (Inuzumi Masaki)] N,s A colors#01 (Kantai Collection -KanColle-)

(C94) [x-GAME! (Mochiko)] Neji to Nejiana no Houteishiki (Heybot!)

[Aura Seiji] Tanpopo Houteishiki

Joushiki Daha! Kuro Gal Bitch-ka Seikatsu Ch. 1, 7-8

Midara no Houteishiki

[Yuiga Naoha] 4P Houteishiki (COMIC P Flirt Vol.10 2011-04)

[Hiyoshi Hana] Kare to Imouto no Houteishiki | The Equation of Him and His Little Sister (COMIC Megastore 2012-08) [English] [The Lusty Lady Project]

[Mugen Houteishiki (Mugen)] Shinkai Seikan (Kantai Collection -KanColle-) [Digital]

(C90) [Xration (mil)] Onigashima no-- (Ragnarok Online) [Chinese] [為了拯救final的蛋蛋漢化]

[Hiyoshi Hana] Youma to Tsuya no Houteishiki (COMIC X-EROS＃17) [Chinese]

Futahato 2 Anotherdays 2 Zantei-ban

[Kazakami Shun] Active Renai Houteishiki Official Visual Book

[Momonga Club (Hayashibara Hikari)] Shoujo no Houteishiki - Girls of Equation [Digital]

[Azuki Kurenai] Midara no Houteishiki: The Equation of the Immoral

[Azuki Kurenai] Midara no Houteishiki - The equation of the Immoral Ch. 9 [English] [SaHa]

[Akuochisukii Sensei] Akuochisukii Sensei no Heroine Haiboku no Houteishiki - Equation of Heroine's defeat by Mr. Akuochisukii | 女性角色敗北的方程式 [Chinese]

[Azuki Kurenai] Yoru no Houteishiki 1 | Equation of the Night 1

[poza] Shishunki no Otokonoko no Tame no Seikyouiku Onnanoko o Ninshin saseru Tame no Nakadashi Sex Nyuumon

(C59) [Tomoyosama (Kayama Akihiro, Ozawa Hiroe)] Tomoyo No Yasashii Houteishiki (Cardcaptor Sakura)

[Uradora Mangan] Riajuu Bakuhatsushiro tte Tonaetara Ratenkei no Succubus-san ga Arawaremashita 2

(C74) [Momonga Club (Hayashibara Hikari)] Shoujo no Houteishiki - Girls of Equation

(COMIC1☆10) [Serizawa-room (Serizawa)] NANASAKI-K (Amagami)

[Yamanashi Kaname] Gin no Cos-Can ~la Argenté Cos-Can~

[Katou Jun] Futa Sis - Futanari Sister a Go! Go!! [English] [Risette]

Pain Jakase no Aishita Renketsu Houteishiki

[Sakura Hikomaru] Imouto no Houteishiki [Chinese]

[Carn] Natsu x Umi = Kiken no Houteishiki | Summer x Beach = Dangerous Equation (Shinzui SUMMER Ver. Vol. 2) [English] [Rage Manga] [Decensored]

(C93) [Mugen Houteishiki (Mutsu Minato)] Chaldea Sakusei Nisshi (Fate/Grand Order)

Enjo Kouhai Another View

(C70) [Neko Kinryouku (NekoNeko)] NekoNeko Otona Houteishiki