Hayai, a single employee of a first-class trading company, enjoys groping women on the morning commuter train. One day, he is caught in the act by his boss, Director Sukegawa. However, he is also a veteran groper and his hobby is peeping.
Three female college students all need extra credit in order to graduate. So they convince an assistant professor into helping them with a three day cram course… in immersive sex studies.
On the Akebono Express bound for Ueno, passenger Chiyoko is seen sleeping with her breasts exposed in the quiet carriage. Yamamoto, peeking at her from the upper bunk, becomes excited. When Chiyoko found out about this, she quickly approached him and began to thrust violently on the small bed....
