Trials of interspecies Sisters~Erotic exchange with Humans~

✦ Summary ✦Nun exploration RPG.It's been half a century since the war between human and the Nonhuman Alliance.The rift between human and nonhuman races remains deep.Therefore, in order to deepen their relationship with humans, the Nonhuman Alliance decided to send nuns to human towns for cultural exchange."Erika" ​​and the other protagonists who were dispatched will gradually lose themselves in happiness during their erotic exchanges with humans.✦ Characters ✦▼ Protagonist ▼Erika (CV 星野天)An energetic and gentle girl. But she is not very good at using her brain.Basically, she believes in crossing the bridge when she gets there.▼Sub heroine ▼Marielle (CV 麦咲輪紫葵)She is the head nun who leads the nuns in the church, and is also the teacher of Erika and Funiru.Although she likes her husband very much, she has not had sex for decades after marriage, so she is quite sexually frustrated.She is very concerned about her inverted nipples.Funiru (CV 琴香)Erika's childhood friend. Although she is...