For those interested in exploring similar content, we recommend the following:
The voice was layered, like many mouths speaking at once. The temperature dropped, and the floor beneath them seemed to pulse like a living heart.
Alternatively, if you meant a different Koumi-jima work (non-adult), please clarify or share the genre/synopsis.
The original work by gained massive popularity on platforms like DLsite and FANZA due to several recurring aesthetic choices: