The Undercover Officer's Obscene Education ~Sex-Crazed Yakumo~
Release date: Dec 4, 2025
Developers: Appetite
Publishers: Tensei Games
Genres: Adventure
Categories: Single-player, Steam Cloud, Family Sharing
Supported languages: English

Undercover agent Yakumo’s mission takes a dark turn when the organization she’s infiltrating already knows who she is. Captured and subjected to brutal “training,” she must endure, adapt, and survive — or risk losing herself completely as they twist her into their perfect double agent. Find out what happens next in this exciting visual novel! Story-driven: over 5 hours of content! Sit back, relax, and enjoy the ride in visual-novel format! Tons of heart-pounding sex scenes! Merciless training! A proud spy gives in to the depths of pleasure! Skip function! Full gallery and scene replay mode! 


Notes: All characters in this game are 18 years of age or older. This game contains explicit sexual content (nudity, sex scenes) intended only for adults over the age of 18. This game also contains BDSM / BDSM-adjacent content. Do not play this game if you are uncomfortable with such content or are accessing from a region where such content is prohibited by law.