j-type beauties with plump, beautiful legs and beautiful buttocks become targets of groping on a crowded train! During their ordinary daily commute, a sudden evil hand attacks their sensitive bodies! At first, they are confused, thinking "Is this a coincidence?", but they react with a twitch as their buttocks are rubbed through their pants by the groping fingers that skillfully approach! Even though they resist, saying "Eh? Isn't this...bad?", they are inserted with a powerful Big Bang rotor, and their limit of endurance is reached with the vibrations that resonate with the shaking of the car! While worrying about the gazes of those around them, their legs tremble, and finally they have a convulsive orgasm with their legs wide open! The body, which has become too sensitive from the rotor's stimulation, accepts the groping's raw insertion and is creampied in the car! In the end, they are left in a daze, but they cannot resist the afterglow of pleasure... will they become addicted to what happened on this train!?