Synopsis
■Graphics by Rui from Pichipichi Galleria R, following the previous title’s great reception■
When genetic modification and a legendary aphrodisiac combine, any woman transforms into a Holstein!
If it’s not big, it’s not breasts!!!!
Breast expansion cascades! Ultra-busty women surpassing incredible meter-long proportions scream obscene words while climaxing with their ‘breasts’!! With each orgasm, growth repeats. Breasts!! Breasts!! Breasts!!
Even after climaxing! Even after climaxing! An endless breast expansion orgasm that’s never allowed to end!!!!!
At this point, these breasts ARE the genitals!!!
■Exceptional style with meter-exceeding explosive breasts still developing? Obsession with size! Masters of breast modification■
We don’t modify small breasts. Our targets are breasts that have grown so large they constantly draw unwanted attention.
Become a witness to how obscenely they’ve developed throughout this history.
■Inhuman play assaults the resolute heroines■
Breast hypertrophy, nipple expansion, nipple fucking, anal dilation, anal sex, clitoral enlargement, bestiality, organ violation, breast daruma transformation, massive fecal enema, breast milk enema, succubus pregnancy, breast milking, reverse irrumatio, pregnant belly violation, navel fucking, electrical play, flesh mass modification, etc…
■Story■
Near-future Japan
Humanity’s golden age of prosperity has ended, shifting into an era of poverty. In times when securing food itself is difficult, words like kindness and compassion sound like nothing but hypocrisy.
Then a legend begins to whisper… somewhere in this nation, an underground empire exists, transformed into a criminal haven.
Under orders from the special forces unit Snake, heroine ‘Mei’ launches an operation to dismantle their hideout.
She possesses an indomitable spirit and a composure unimaginable from her beautiful appearance.
Her seemingly impenetrable life begins to crumble at a turning point.
Breasts that grow larger with each climax from drug overdose side effects!
Repeated sexual acts with pigs resulting in pig pregnancy!!!!
Massive breast milk flowing backward from her ass!!
An endless parade of inhuman perverted play!!!
Their bodies and minds are modified, transforming into female pigs seeking only pleasure.
■Images■
Base CG: Approximately 210 images (including variations)
Editorial Review
Busty Undercover Agent Ver1.1 positions itself at the extreme end of the breast expansion spectrum—a work that doesn’t merely feature growth as one element among many, but treats it as the singular, consuming narrative and mechanical focus. In a landscape where expansion content ranges from moderate to astronomical, this title commits fully to the latter with unabashed philosophical clarity: breasts have transcended secondary sexual characteristics to become the primary erotic locus.
What distinguishes this release is its conceptual consistency and production pedigree. Rui from Pichipichi Galleria R brings established technical competence in rendering hyperbolic anatomy at scale, and the work’s framing—genetic modification, aphrodisiac catalysts, meter-exceeding proportions—treats grotesque expansion less as isolated fetish sequence and more as a pseudo-scientific system with internal logic. The combination of breast expansion, lactation, body modification, and pregnancy creates a layered physiological fantasy where growth compounds across multiple mechanisms. The emphasis on “endless” escalation and the explicit rejection of small or moderately-enlarged breasts as unworthy targets signals an audience that doesn’t want subtle increments.
The inclusion of bestiality, anal content, and enema elements indicates this work operates in extreme content territory across multiple vectors simultaneously—it’s not expansion-focused with light supplementary content, but rather a convergence point of several niche fetishes where expansion dominates thematically.
This work serves a narrowly defined but passionate audience: collectors of hyperbolic expansion content who value artistic consistency, technical rendering quality, and thematic commitment over broad appeal. The practical absence of conventional narrative tension means engagement depends entirely on aesthetic appreciation of the specified content.
A technically competent execution of a maximalist vision for a specific extreme within adult game design—essential for devotees of astronomical-scale expansion, indulgent for others.
Get “Busty Undercover Agent Ver1.1 ” on DLsite
This Week’s Top Rankings:
Related Tags:
Anal | lactation | bestiality | enema | pregnant
Interested? Get the free trial here ↓
![Mainetsu Complete Set [With Bonus Content]](https://henhenta.com/wp-content/uploads/2026/05/e38090e789b9e585b8e4bb98e3818de38091e381bee38184e381a6e381a4-e382b3e383b3e38397e383aae383bce38388e382bbe38383e38388e38090e8908ce38188-1-300x225.jpg)