Miyu, a female student who commutes by train, has been plagued by daily harassment. "This guy is a pervert!" she thinks, wishing she had the guts to call him out. The timid and gentle girl can't help but endure the unsettling feeling of having her skirt-covered ass rubbed by him. She bites her lip tightly, staring at the train's digital display board until her destination. But... this time, the harassment was different. His touch was different. She unconsciously squirted. It felt so good. She even found herself wanting more. Despite being on a crowded train, she... gets off with a stranger's hand on her pussy!