Hitozuma Kouzen Chijoku Densha: Ketai Hitotsu de Osawari Sokuhame Shihoudai Tanin no Tsuma wo Nenchaku Tanetsuke Netori  

人妻公然恥辱電車 ~携帯一つでお触り即ハメし放題 他人の妻を粘着種付け寝取り~

It's acceptable to grope with your dream smartphone at any time and in any location. Sexual activity can be easily accessed through a button press on the device. In response to an unwarranted accusation of improper behavior while riding a train, the man will use his phone to seek retribution.