One after another! Having relationships with multiple men is a common culture!
Joushi to Buka no Kankei SPD | SPD - Superior and Subordinate's Relationship
Ai no manimani
(C97) [Manaita] Sensei! Kekkonshiki de Jojisou Shitemite!
(C81) [Mitarashi Dango (GABRI-L)] Honshimei wa Jupiter (Sailor Moon) [Digital]
Shota Eater Chapter 1 - Sibling Relationship
[Kinku] Kateinai Enko | Domestic relationship (COMIC LO 2013-06) [English]
[Maka Fushigi] Short Distance Relationship - The Daughter [English] ATF
Rojiura no Himitsu ~Majo Aji Kurabe | Secret of the Back Alley
[JUNK Center Kameyoko Bldg] Hajimete no Konshinsoukan. Okaa-san to Musuko no Shoya wa Gudaguda Datta Hanashi.
SPD - Superior and Subordinate's Relationship
A Relationship with Lewd Boobs Only!
(C92) [Studio Himawari (Himukai Kyousuke)] Akogare no Joushi ni Mechakucha Amaetai Hon 2 ~Douryou no Kekkonshiki Gaeri Jitaku Hen~ (Mahou Shoujo Lyrical Nanoha) [English] {darknight}
[THE UNDEATH MTS (Ayana Mizuki)] Konshinsōkan 2 sakuhin pakku ~ yameru toki mo wakatsu toki mo& imōto mo ~ue~e ~ [Digital]
Ironna Kankei - Iro-Ero relationship
[yasu] Ibitsu na Kankei ~Manatsu no YariCir Rankou Gasshuku~ - Distorted relationship
Tsukiakari no Osake | Moonshine
Shachiku no Shizuku-chan ga Karadawohatte Kaishanosonshitsu o Anaumesuru hon
Reigen Shoukan Love Kyonshii
Comic Unreal The Best Mon musume Love H Collection
Unbalance Relationship
Ironna Kankei - Iro-Ero relationship Ch. 1-2, 4, 6, 8, 10, 12
[Tsubaki Jushirou] Kono Naka ni Kinshin Soukan Shiteiru Musume ga 3-nin Imasu #4 | Three Of These Girls Are In Incestuous Relationships #4 [English] [CulturedCommissions] [Digital]
(C75) [Onshitsu Tanuki (kanbe)] Akatsuki Seikatsu (CODE GEASS: Lelouch of the Rebellion)
[Heisei Chachamaru Dou (N.O. Chachamaru)] Yosoji onshi wa o to me-mori | This Teacher In Her 40s Is Acting Like a Young Girl In The Prime of Her Life [English] {Doujins.com} [Digital]
[Edogawa Gabal] Onee chan no Honshin wa... (COMIC Potpourri Club 2010-12)
Ankoku ni Ochite | Fallen into the Darkness
[Mikuni Hajime] Onshitsu no Majo / The Greenhouse Witch [English]
(C86) [Tsuki no Kurai Bubun (ami2)] Hikkuri Kyonshi-kkusu (Touhou Project)
Sougou Hoshoku Relation | A Mutually Predacious Relationship {yuriproject}
[Konshin] Elma to Maboroshi no Hana (COMIC Unreal 2018-08 Vol. 74) [Chinese] [驭灵师X肉包汉化组] [Digital]
[Mahiruno Kagerou] Chuumonshitara Soku Teikyou! Otoko wa Damatte Nakadashi-ya. Onna wa Jibun Gohoubi Nikubou Sweets Ten. 03 - Jukensei (Omake) [Digital]
(C90) [Youmusya (Gengorou)] Shirasaka Koume to no Kankei | The Relationship Between Me and Koume (THE IDOLM@STER CINDERELLA GIRLS) [English] [After Hours Translation]
Secret relationship
(Bokura no Love Live! 13) [Clochette (Sakura Yuki)] Otonokizaka Gakuin Idol-bu Kekkonshiki Shoya Sonogo Sono ni ~Hanayo Maki Nico Nozomi Eli Hen~ (Love Live!)
[Mahiruno Kagerou] Chuumonshitara Soku Teikyou! Otoko wa Damatte Nakadashi-ya. Onna wa Jibun Gohoubi Nikubou Sweets Ten. 02 - Onna wa Jibun Gohoubi Nikubou Sweets Ten. [Digital]
[Napier Sabre (Ryu-Akt)] Relationship (Phantasy Star Portable 2 Infinity) [Digital]
(C88) [Kyuukyuubako (Makiron)] Kekkonshitara Dounaru!? 2 (Free!)
[Night Dream]Relationship of Kiseki and Teikou basketball manager - Green Tanuki edition[kuroko's basketball]
Relationship
[Konshin] Elma to Maboroshi no Hana (COMIC Unreal 2018-08 Vol. 74) [Chinese] [沒有漢化] [Digital]
Kare Kano Boshuu Chuu! | Relationships Wanted!
Sougou Hoshoku Relation | A Mutually Predacious Relationship
Gishimai no Kankei | The Relationship of the Sisters-in-Law
COMIC Megastore 2006-06
(Utahime Teien 20) [PLANT (Tsurui)] Yukiho to yoru no kekkonshiki (THE IDOLM@STER) [Chinese] [不咕鸟汉化组]
[Tsukishiro Saya] Hikawake no Ibitsu na Seijijou Ch. 2 | Hikawa Houshold's Distorted Sexual Relationships 2 [English] {Doujins.com}
COMIC Unreal 2016-06 Vol. 61
Erotic magical world of strange relationships
COMIC LO 2010-09 Vol. 78
[Noda Gaku] Abunai Kankei | Dangerous Relationship Ch. 5 [English] [Leon990 Scanlations]
Dekoboko na Kankei | Uneven Relationship
[TEKETO (Sanada)] Honshin (Fate/stay night)
(Zennin Shuuketsu 4) [Yano (Yano)] Aimai na Kankei | An ambiguous relationship (Naruto) [English] [Marie]
[yasu] Ibitsu na Kankei ~Manatsu no YariCir Rankou Gasshuku~ - Distorted relationship Ch. 1-3 [English] [DKKMD Translations]
Owaranai Yume ni Oborete
[Narusawa Kei] Kare Kano Boshuu Chuu! | Relationships Wanted! (COMIC RiN 2010-10) [English] [Sling] [Decensored]
[Bai Asuka] Shujuukankei (Master-Servant Relationship) [English] [desudesu]
Futanari Zelda Hime to Dokidoki = Kekkonshiki
Dasu Mono Dase yo! 2
[Kojima Saya] Boku to Kanojo no Shujuu Kankei - Me And Her Master-Servant Relationship Ch. 1-3 [English] [freudia]
Friendly Relationship
Hikawake no Ibitsu na Seijijou Ch. 4 | Hikawa Houshold's Distorted Sexual Relationships 4
Tensei Shitara Nyotaika Shitaue, Isekai de Honshime Ichii no Fuzokujo ni natta Ken
(C63) [Shinnihon Pepsitou (St.germain-sal)] Kagayake! WP Senshuken! [Amazing! WP Championship] (Vampire Savior [Darkstalkers]) [English] =LWB=
COMIC Unreal 2020-02 Vol. 83
Our Secret Relationship
(SC2015 Autumn) [Inuzuka Clinic (Inuzuka Bouru)] Inu no Honkai, Shitsuke no Honshitsu | The Dog's Desire and the Reality of Discipline (Love Live!) [Chinese] [沒有漢化]
[Bitch☆Goigostar] Kumonshiki Kairaku Benjo [Digital]
Ochiyuku Konyakusha ~Kekkonshiki 5-ka-mae no Dousoukai de Netorareru Kanojo~
Otoko no 1 oku 3000-bai kimochi ī! ! ~ Jotaika konshinsōkan ~+ ~ in randesu ne ~
[Konshin] Shiawase Tamago no Tsukurikata (COMIC Unreal 2017-12 Vol. 70) [Chinese] [驭灵师个人汉化X肉包汉化组] [Digital]
A Relationship of Absolute Control
Ibitsu na Kankei ~Manatsu no YariCir Rankou Gasshuku~ - Distorted relationship Ch. 1
[Tsubaki Jushirou] Kono Naka ni Kinshin Soukan Shiteiru Musume ga 3-nin Imasu #3 | Three Of These Girls Are In Incestuous Relationships #3 [English] [CulturedCommissions] [Digital]
Inu no Honkai, Shitsuke no Honshitsu The Dog's Desire and the Reality of Discipline
Kekkonshitara Dounaru!? 3
Futari dake no kekkonshiki
[ratatatat74] Forbidden Relationship [Shitty_Translate] English
Relationship between Haman and Char: Part 1
Shiawase na Kekkonshiki
Saimin Apuri de Hajimaru Kinshin Kankei | Hypnosis app begins an incestuous relationship
[Peeping Phantom] Innai No kekkonshiki [Digital]
COMIC Unreal 2018-04 Vol. 72 [Digital]
[Konshin] Dragon Heart (COMIC Unreal 2018-02 Vol. 71) [Chinese] [驭灵师个人汉化] [Digital]
[Konshin] Kanbinaru Doku | The Poison That Sweetens (COMIC Unreal 2017-06 Vol. 67) [Chinese] [驭灵师个人汉化] [Digital]
(SC2015 Autumn) [Inuzuka Clinic (Inuzuka Bouru)] Inu no Honkai, Shitsuke no Honshitsu (Love Live!) [Sample]
[Noda Gaku] Abunai Kankei | Dangerous Relationship Ch. 4 [English] ~Leon990 Scanlations~
[Takano Yuki] Enren | Long Distance Relationship (COMIC AUN 2012-05 Vol. 190) [English] [desudesu]
[Gekka Kaguya] Shimai no Kankei | The Relationship of the Sisters-in-Law (Bengoshi -> Futanari -> Namahaishin) [English] [Komori Translations] [Digital]
Kyonyuu Mama to Kinshin Soukan | Busty Moms and Intimate Family Relationships Ch. 1
(C87) [Piz (Koura Kira)] Zenmon no Kyonshii Koumon no Kijin (Hoozuki no Reitetsu)
Strange Relationship - Durarara doujinshi Japanese
My relationship with my sister's sex friend who happens to be a guy with long bangs
Kimi to Boku no Kankei | The Relationship Between You & I
[Hindenburg] My Sonshine [Digital]
[yasu] Ibitsu na Kankei ~Manatsu no YariCir Rankou Gasshuku~ - Distorted relationship Ch. 1 (COMIC Grape Vol. 57) [English] [DKKMD Translations]
Yosoji onshi wa o to me-mori
Elma to Maboroshi no Hana
Hatsujou Kyonshii ni Shiborarete
[Konshin] Iku made Ikasete (COMIC Unreal 2021-06 Vol. 91) [Chinese] [爱弹幕汉化组] [Digital]
COMIC Unreal 2022-04 Vol.96
Abunai Kankei | Dangerous Relationship Ch. 5
Jii-chan Dame da yo
The Future of a immoral relationship [English] [Rewrite] [Ωcomatose]
COMIC Unreal 2016-10 Vol. 63 [Digital]
Inu no Honkai, Shitsuke no Honshitsu
[Studio Paja (PAJA)] Watashi wa Jukensei no Oi to Kankei o Motte Shimaimashita. | I had a Relationship with my Exam Taking Nephew [English] [Amoskandy]
[MATSU Takeshi] Teacher-Student Relationship [ENG]
(C91) [Maltese (Runrun)] Futanari Zelda Hime to Dokidoki = Kekkonshiki (The Legend Of Zelda)
(SC2015 Autumn) [Inuzuka Clinic (Inuzuka Bouru)] Inu no Honkai, Shitsuke no Honshitsu | The Dog's Desire and the Reality of Discipline (Love Live!) [English] [GiB]
(C92) [HIGH RISK REVOLUTION (Aizawa Hiroshi)] Shiori Dai-Nijuuyon-Shou Ituwari no Hate - Shiori Volume 24 The End of False Relationship (Tokimeki Memorial)
(Senka no Toki) [Honshimeji (Sashimi)] Mumyou no Yami (Touken Ranbu)
[Chinjao Girl. (Someoka Yusura)] UreAne ~Sanjuudai kara no Tsugou ga Yosugiru Kyoudai Kankei~ | My Mature Older Sister ~The Crazy Convenient Relationship of An Older Sister and Younger Brother In Their 30s [English] {Doujins.com}
Himitsu no Kankei | Our Secret Relationship ch. 1-3
[Maka Fushigi] Short Distance Relationship - The Niece [English] ATF
[Odenden (Etori)] Boku to Kimi no Shiawase Kekkonshiki | Our Happily Ever After Wedding [English] [THE-LEGENDARY] [Digital] [Partially Decensored]
[Maka Fushigi] Short Distance Relationship - Little Sister [English] ATF V.2
Kitsu Souna Katei Kyoushi no Ana wa Yuruyuru
(SC2015 Autumn) [Inuzuka Clinic (Inuzuka Bouru)] Inu no Honkai, Shitsuke no Honshitsu | The Dog's Desire and the Reality of Discipline (Love Live!) [Chinese] [北京神马个人汉化]
Ayashii Tsuuhan Seikatsu
Kanbinaru Doku | The Poison That Sweetens
[Saemon] Ironna Kankei - Iro-Ero relationship [Chinese] [開坑當做例行重嵌組] [Incomplete]
[Konshin] Laura to Kuro no Shiawase no Jumon (COMIC Unreal 2018-06 Vol. 73) [Chinese] [驭灵师个人汉化] [Digital]
Doronuma no Miko Kouhen
[Chiba Toshirou] Kinkyori Renai | Near Distance Relationship (COMIC Megastore H 2008-03) [English] [Bouyatachi] [Decensored]
[Maka Fushigi] Short Distance Relationship - Little Sister [English] ATF
(C91) [Youmusya (Gengorou)] Shirasaka Koume to no Kankei 2 | The Relationship Between Me and Koume 2 (THE IDOLM@STER CINDERELLA GIRLS) [English]
[Shimashima-PNT (Punita)] Ecchi kara Hajimeru Fujun Isei Kouyuu - illicit sexual relationship (Re:Zero kara Hajimeru Isekai Seikatsu) [Chinese] [final個人漢化] [Digital]
(C96) [sabacan (Yoito Chimo)] Secret relationship (BanG Dream!) [Chinese] [基德漢化組] [Taiwanese-Hanji]
[Saemon] Ironna Kankei - Iro-Ero relationship [Chinese]
(C91) [Clochette (Sakura Yuki)] Kekkonshiki Nijikai Shoya Sonogo Soushuuhen (Love Live!) [Chinese] [网上打飞机个人汉化]