STORY
![Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]](http://img.dlsite.jp/modpub/images2/parts/RJ01495000/RJ01494595/f180a63906700da4f7e6201175e19725.jpg "Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]")
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—.
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
![Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]](http://img.dlsite.jp/modpub/images2/parts/RJ01495000/RJ01494595/feba7665ee5650bbd4ac2c1d3d6a8c14.jpg "Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]")
◆ 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
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
![Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]](http://img.dlsite.jp/modpub/images2/parts/RJ01495000/RJ01494595/170c0765458b72c4ded7bb68330d01bb.jpg "Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]")
・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
・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
・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!
![Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]](http://img.dlsite.jp/modpub/images2/parts/RJ01495000/RJ01494595/6113367eeb755322a0cd2f0c285fd400.jpg "Exposed in the Gym Storage Room: The Honor Student’s Hidden Side — Forbidden Sex After Being Caught in the Act [underball]")
・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)
・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
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.)