異世界性活のススメ [Isekai Seikatsu no Susume]

This is a single-issue manga from 2021, published by Takeshobo, that blends the popular isekai genre with explicit adult content. It follows a protagonist transported to a fantasy world where the primary focus is on sexual adventure rather than combat or quests. The series is notable for its unabashedly adult premise within the isekai framework.