Paradise Sauna: Perspire and Desire 4

At university, they call me "Shorts Boy." Why? Because even in winter, I stroll around in shorts and a tank top. But there's a reason for it—apparently, when I sweat, girls go wild for the scent. My sweat seems to have some sort of aphrodisiac effect that drives women crazy. So, I've been doing everything I can to keep a low profile... But somehow, I end up at a sauna with three girls: a tsundere younger girl, a comforting beauty, and a smart princess-type, all with impressive assets, and all affected by the effects of my sweat?! Things get wild when they start wondering if other "liquids" would have stronger effects...