One after another! Having relationships with multiple men is a common culture!
[Mocco] Hatsu Fuuzoku wa Aitsu to Battery ~Kyousei Skinship de Fukamari Sugiru Kankei~ | I Ran Into Her for My First Sexual Service ~A Relationship That Overly Deepens Through Forced Skinship~ (COMIC Grape Vol. 85) [English] [Nisor]
DLO-04 Kare to Watashi no Kowareta Kizuna | DLO-04 My Boyfriend And My Broken Relationship
[Tsukishiro Saya] Hikawake no Ibitsu na Seijijou Ch. 2 | Hikawa Houshold's Distorted Sexual Relationships 2 [English] {Doujins.com}
[Yukarigawa Yumiya] Maku Saikai | Forbidden Relationship (Ikenai Kotokai) [English]
Lavenza to, Tokubetsu na Kankei ni Natta... | My Relationship with Lavenza is Special...
Unbalance Relationship
[Saemon] Ironna Kankei - Iro-Ero relationship Ch. 1-2, 4, 6, 8, 10, 12 [English] [N04h] [Digital]
[Haikawa Hemlen] Kanojo no Kankei | Her Relationship (Shinzui SUMMER ver. VOL. 1) [English] {doujin-moe.us}
Erotic magical world of strange relationships
[Ikumura (Iku)] Oku-san to no Gokei Kankei | A Reciprocal Relationship with a Married Woman [English] [Coffedrug] [Digital]
[Kinku] Kateinai Enko | Domestic relationship (COMIC LO 2013-06) [English]
[Studio Paja (PAJA)] Watashi wa Jukensei no Oi to Kankei o Motte Shimaimashita. | I had a Relationship with my Exam Taking Nephew [English] [Amoskandy]