12-sai Sa no Himitsu Renai | A Secret Relationship 12 Years Apart
Na no Nai Kankei | A Relationship Without Name
[Bai Asuka] Shujuukankei (Master-Servant Relationship) [English] [desudesu]
[Saemon] Ironna Kankei - Iro-Ero relationship [Chinese][GANTZ重嵌][Incomplete]
Relationship of Superiors and Subordinates
[Yukarigawa Yumiya] Maku Saikai | Forbidden Relationship (Ikenai Kotokai) [English]
A police woman turns out to be in a relationship with a gangster
One after another! Having relationships with multiple men is a common culture!
-Twin Camellias- Senji Kokubunji's Relationship in the Futanari Academy