At The Next Station - S1.E2

A girl is confronted by a man on the subway who offers to make her "beautiful". When the train later reaches a station, the girl is gone, but the passengers hear her cries from the tunnel. Miyu comes to another high school and finds some friends. They ride the subway and Miyu hears about how girls often disappear from the last car in the subway. Miyu decides to take the train alone.