Title : Isekai Netorare Ryokan ~Koibito to Imouto ga Shiranai Aida ni Ubawareteiku~ [Iseyado], Another World NTR Inn ~My Lover and Sister Are Being Stolen Away Without Me Knowing~
Original Title : 『異世界NTR旅館 ～恋人と妹が知らない間に奪われていく～ 【イセヤド】』
Language : Japanese, English, Chinese (Official)
Developer : マシュマロトラップ
Released date : 2026-06-03


DESCRIPTION
An unfamiliar parallel world, where a peaceful daily life is quietly eroded by the demonic hands of the local men—.

Enveloped in a mysterious light, the protagonist Hiroto, his lover Miyuki, and his younger sister Akari find themselves transported to another world. The first place the three of them arrive at is a single “Another World Inn.” While helping out with the inn’s chores to gather information on how to return to their original world, they are suddenly attacked by monsters in the forest one day while accompanying a mercenary guest named Clark.

Triggered by this incident, cracks begin to form in the bond between the three of them bit by bit… Furthermore, a new man calling himself Dejard appears at the inn, and two dark, predatory hands begin to stretch toward his beloved Miyuki and Akari……

This game is a “Real-Time Progression NTR Simulation” where the heroines live out their own lives behind the scenes of the player’s actions.