Fulfilling the desires of men interested in stealing another man's girlfriend, this NTR hot springs resort invites couples on a romantic getaway, then sends in a male performer under the guise of a hot spring TV program to seduce and ultimately sleep with the woman. This time, the target is Mana, a naturally charming girl with beautiful legs, big tits, and a sweet, gentle smile. After being told by her boyfriend to head to the hot springs alone, Mana is suddenly approached and convinced to participate in a fake TV shoot. Filmed while soaking in the bath with only a towel, her innocent, clumsy personality shines through—along with occasional nip slips and subtle erotic moments. After filming ends, she's approached by a handsome, well-endowed man who invites her to a private mixed bath, where a sensual massage quickly escalates. Spread in a wide M-shape, she climaxes from skilled fingering, then repays him with a blowjob, tasting his big cock and swallowing his cum. Later, as she prepares to return to her boyfriend, he seduces her once more and leads her back to the room. Her yukata is removed, her big tits roughly groped, and she moans lewdly as her pussy gets wet. She sucks his bigger cock with enthusiasm, then takes it deep inside her, losing control as she rides him wildly to orgasm—her slut awakening complete. The sheer size of the cock and the psychological torment of hearing her boyfriend compared unfavorably intensify the cuckold experience, drawing out her submissive side and making her forget her boyfriend entirely through intensely satisfying, forbidden sex.