Produce 101 was incredibly popular with young female fans, especially high school students.
The show was so popular with high school girls that the effects can be seen on the school walls.
Fans of certain members made sure to put posters on the walls to encourage their classmates to vote.
Fans tried really hard to help their favorite contestants make the final eleven on the show.
Now that the show is finally over, there are probably a lot of high school Wanna One fans.