"What's wrong with the post-90s youth?" Following the previous sensational "fainting girl" and "money-burning girl" of the post-90s online, recently two videos about indecent behaviors of students were exposed on the Internet successively, immediately drawing attention from netizens and educational experts. The main characters in the two obscene videos are both current students. In one video, a girl was subjected to chest molestation by a group of male classmates; in another video, several boys sexually harassed a female student in their class, forcibly taking off her pants and filming her. These are the recently popular "Groping Gate" and "Pants-off Gate" incidents.