Descripción del contenido para adultos

Los desarrolladores describen su contenido así:

This game contains content not appropriate for all ages, or for viewing at work:
sexual content, nudity and sexual violence.
All characters in the game are over the age of 18.

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The male protagonist is into the female lead but can't muster the courage to speak up.
After finally managing to set up a date with her at an izakaya, he still can't find the bravery to confess.
Unable to bear it any longer, the female lead, Mizuki, suggesting they go a sex club together?!

In the club, any behavior is allowed,
including activities in the "Game Room" that involve having sex.
Mizuki holds onto the hope that the male protagonist might gather the courage to confess in this open atmosphere.
Unexpectedly, a flirtatious couple approaches them with an invitation to join...?