An unexpected rain soaks a female high school student who boards a crowded train. A man gets excited seeing her wet hair and see-through bra. Due to the crowding, his penis starts to get erect as their chests press together. The girl notices that this erection is due to her see-through bra and the close contact, and as he presses his penis against her, her breathing becomes increasingly ragged. Then, whether out of apology or excitement, she reaches out her hand towards the man's penis…
