[IPZ-274] (English subbed) The Affair I’m having with my girlfriend’s Sister Arisu Miyuki

This guy has Shinomiya Yuri as his girlfriend and things are going well. However, Yuri’s sister, Miyuki Arisu notices them and begins to get jealous.

In turn, the boyfriend also notices that Yuri is a rather jealous girl, not only with a horny twist but also quite domineering.