Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]

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サークル名	underball

販売日	2025年10月31日
シナリオ	はるじお
イラスト	しお
声優	吾妻信一 / 水斗累
音楽	うらうら
年齢指定	R18
作品形式	動画音声あり
ファイル形式	MP4
その他	ボーイズラブ
対応言語	英語
ジャンル	連続絶頂おもちゃ首輪/鎖/拘束具同級生/同僚オナニー潮吹き乳首責め乳首/乳輪
ファイル容量	2.07GB

言語の選択

日本語英語簡体中文繁体中文韓国語

作品内容

STORY

The moment Inoyama catches Hamada masturbating, Hamada's everyday life crumbles away.
Shame and pleasure are etched into him simultaneously, his refusals turning into sweet moans.
At the end of their forbidden sex unfolding in the gym storage room, inescapable domination awaits—.

Character

◆ Inoyama
A model student on the surface, but hiding an uncontrollable desire for domination—a sadistic temperament.
Having witnessed the masturbation scene, he unleashes his violent impulse for exclusive possession.
“Let me hear every little embarrassing sound.”
CV: Shinichi Azuma

◆ Hamada
A quiet, inconspicuous guy who secretly harbors a perverse fetish—so far gone that he uploads videos of himself masturbating.
Exposed and cornered, his shame is rewritten into pleasure as he becomes the corrupted prey.
“No, please...! Don't look...! Please, stop...!”
CV: Rui Mito

Highlights

・Premium Live2D animation with both characters moving fluidly!
・Four distinct scenarios in total!
・Fully voiced, recorded in luxurious binaural with the KU-100!

[Gameplay Contents]

Anal bead insertion
Nipple teasing
Collar & leash bondage
Standing doggy penetration
Repeated squirting climaxes
Creampie ejaculation

Situations

・Gym storage room masturbation exposure → His masturbating form exposed, anal beads are thrust into him
・Forced leg-spreading humiliation tease → Nipples toyed with, forced to climax in humiliation
・Collar and leash bondage → Pounded from behind in standing doggy, repeated squirting orgasms
・The end of domination → Sweet whispers and creampie lead to complete surrender to irresistible pleasure

Bonus Content Included with Purchase!

・Ultra-rare original sketches by Shio-sensei
・Live2D video + audio data
・Unforgettable Forbidden Sex ASMR in the clubroom audio (approx. 10 min)
・Two bonus novellas, 3000 words each, from both the receiver’s and the aggressor’s perspective!!
(Bonus content in Japanese only)

Credits

Scenario: Harujio

Illustration: Shio
https://x.com/siomizu7777

Inoyama: Shinichi Azuma
Hamada: Rui Mito

Audio Editing: Uraura
https://x.com/uraura_masound

Design: SueQ
https://x.com/sue_q0909

Production & Animation: under ball
https://x.com/underball_0000

(English product description provided by the creator.)