Although you can't see them, if you make a sound, everyone around will find out. In this makeshift closed space, the super close and silent endurance sex that Mana-chan has in her futon always excites her more than usual, reaching silent orgasms in various situations! No matter how desperately she suppresses her voice, the lewd sounds of exchanging bodily fluids still leak out... This situation causes her lust to run wild!
