On the morning of April 13, 1999, freelance writer Naoki Ito was on a rush-hour train in Tokyo, heading home after working all night. Just after the train left Ikebukuro Station, a high school girl turned to him, grabbed him by the wrist and said, "Cut it out."

An accusation from a girl on a packed train could only mean one thing -- he was suspected of groping. But Ito claims he never touched her.

Another man, who didn't see anything but heard the commotion, cut in and told Ito to own up to the wrongdoing, to which Ito replied, "I didn't do anything."