Gendai eizō kikaku

After school two virginal high school girls, Mari and Emi, decide to visit a disco club in the red light district. While Mari is dancing to the beat Emi is picked up by two men and sexually assaulted. The next day the two men try to force Emi into prostitution. When Mari finds out what happened to her best friend she burns with revenge… and conceals a razor.

A fast talking, money stealing, gambling, womanizing low level yakuza bum takes advantage of a bar owner’s virgin daughter. But even after he does the right thing his bad habits don’t change.

Two men get to know each other through their shared love of groping on the train, and fall into a bromance. They build a set that looks exactly like the train, and when they open a shop where people can come and play groper with their models inside of this set, it becomes very successful.