Synopsis
Summary
[What is Underground MMA]
With no gender or age restrictions, this no-holds-barred combat club allows combatants to brawl to their heart’s content. The victor of each round can do whatever they please with their opponent…
[The story so far…]
My goal is to be the strongest. A grappling master. I found the Underground MMA on my quest to become the best.
In regular matches, there are plenty of rules to keep the fighters safe.
But here, there are no rules.
After years of countless victories, people started saying I had a body of steel. I ran out of opponents as I became stronger.
One day, a new challenger approached.
Some girl. Even the strongest men couldn’t beat me so I decided to teach her a lesson about the difference between men and women.
[Contents]
25 main pages (+ 2 explanation pages)
21 bonus pages
Cover
Afterword
47 English pages
97 pages total
[Features]
Grappling
Mixed Fighting
Boxing
Dominatrix
Reverse R*pe
Choking
Forced cunnilingus
Drinking urine
Chastity belt
This work primarily focuses on the male character getting beaten down, body and mind, by the female character.
*There is some bloodshed
Female Challenger
A new member of Underground MMA.
Afraid of nothing, she challenges the hotshot of the male combatants to a match.
She hates being looked down on simply because she is a woman.
Once she loses her temper, nobody can hold her back.
Even if her opponent is knocked down or surrenders, she’ll beat the crap out of them until she’s satisfied.
Protagonist
An active member of Underground MMA.
A strong combatant, he has been struggling to find opponents.
People say he has a body of steel.
After defeating many a burly man, he cannot even see women on the same level as he is.
This time, he fights his first female opponent…
Creator Information
pixix:
https://www.pixiv.net/users/56655008
Twitter:
FANBOX:
https://mutyu.fanbox.cc/
Taking requests!
https://www.pixiv.net/users/56655008/request
| Circle | MUTYU |
| Tags | R18, Manga, Japanese, English |
| Price | 990JPY |
Editorial Review
Underground MMA fiction occupies a specific niche in adult manga: the combat-fetish space where physical dominance becomes the primary erotic currency. This work positions itself squarely within that territory, leveraging the competitive fighting premise as a framing device for power-exchange scenarios rather than as genuine sport narrative.
The core appeal here hinges on a reversal premise—a arrogant male fighter confronting an unexpectedly dominant female opponent—paired with an extensive tag list emphasizing humiliation and bodily control. The grappling and mixed fighting elements ground the dominance fantasy in a martial context, which distinguishes this from pure submission work. The inclusion of specific acts (choking, forced cunnilingus, urine play) alongside the chastity belt tag signals an intent toward total subjugation fantasy rather than mutual combat eroticism. The substantial page count—97 pages total with 25 main story pages and 21 bonus pages—suggests deliberate effort in both narrative scaffolding and extended scenario development, which matters for readers who want buildup alongside climax.
The English localization is a practical asset in the DLsite market, removing a significant friction point for Western audiences. The synopsis explicitly frames this as a teaching moment about gender dynamics, which will either resonate strongly or alienate entirely depending on whether you’re drawn to that ideological subtext or prefer your power fantasy divorced from commentary.
This appeals specifically to readers who enjoy male humiliation through female physical/sexual dominance, who value the grappling combat framework as more than set dressing, and who gravitate toward the more extreme end of the submission tag spectrum. The work’s conviction about its premise—complete absence of sympathetic framing for the male lead—will satisfy its target or repel everyone else cleanly.
A straightforward power-reversal fantasy executed without apology for its specific audience.
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