"Wait...is that...breast milk?!" Seduced by milk overflowing from a strong, masculine chest, the crowded train became full of molesters! As someone grips his ass from behind, his subordinate suddenly latches onto his nipples and starts drinking! What the hell is going on? It turns out chief Suzuki has caught a strange new illness called "Atypical Ectohormone ππ Syndrome" also known as Pai-Pai Syndrome. When a man contracts this illness, he starts releasing a milk-like pheromone from his nipples, which puts other men in heat! To make matters worse, the only way to cure it is Sex? Overcome by desire for his milk, lustful subordinate Shibuya relentlessly hounds his nipples and body... The horny milk just keeps on flowing!!