Angel Legion

The Undercover Officer's Obscene Education ~Sex-Crazed Yakumo~

Appetite  •  Dec 4, 2025  •  96% from 30 reviews

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.

$13.99 (USD)

Videos & Images

Take a look at what's happening in The Undercover Officer's Obscene Education ~Sex-Crazed Yakumo~

The Undercover Officer's Obscene Education ~Sex-Crazed Yakumo~ screenshot
The Undercover Officer's Obscene Education ~Sex-Crazed Yakumo~ screenshot
The Undercover Officer's Obscene Education ~Sex-Crazed Yakumo~ screenshot
The Undercover Officer's Obscene Education ~Sex-Crazed Yakumo~ screenshot
The Undercover Officer's Obscene Education ~Sex-Crazed Yakumo~ screenshot

Reviews Summary

The game features a provocative narrative centered on a female undercover officer's sexual training, combining intense visuals and a focus on corruption within a short, fetish-driven experience.

The Good

  • Engaging and intense story
  • Stunning visuals and art style
  • Strong sense of power dynamics
  • Bold and unapologetically erotic

The Bad

  • Limited choices throughout gameplay
  • Static images with no animations
  • Short overall game length
  • Not worth the price for some

The Horny

  • Explores taboo relationships
  • Heavy BDSM and fetish elements
  • Raw and unfiltered narrative
  • Captivating dark psychological themes

Top rated reviews

[後半に日本語レビューあり] [h1] A serious undercover officer being “lewdly educated” in a short fetish-focused ADV [/h1] This is a story in which a duty-driven female undercover officer is captured and made to undergo stepwise sexual training—called “education”—inside a criminal organization’s brothel. Her infiltration has already been exposed from the start, and she i…

16 found this helpful Read more on Steam →

SImple novella with 1 choice for the whole game, can be skipped in 5 min. Only for people who wants to read. Graphics is good, but images are static (0 animations). Game doesnt cost its money. I have played same novels for lower price.

13 found this helpful Read more on Steam →

The game begins shortly after the capture, showing the protagonist undergoing her first training session. Midway through the game, there are also two choices that influence which of the two endings you receive, but they don't differ significantly in meaning.

8 found this helpful Read more on Steam →

About This Game

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!

News & updates

Latest from the developers.

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Comments (123)

Most recent community feedback.

Zestine

Love the visuals and the side missions. The character banter is top tier.

Nyra

Story is solid and the combat feels great, just wish there was more UI customization.

Kiro

I keep coming back after every update. The new scenes were worth it.