He's the only one who knows who his boss really is... Katsumi, an office worker at an escort service, is being "trained" by his boss, Tomoyuki. When Tomoyuki practically coerced him into this arrangement, he'd only been curious... But, Katsumi's body is slowly but surely growing insatiable for his boss's punishment. In fact, it's starting to seem like he's catching feelings... Is this just dependency? Or is it...!?