Any type of show, action comedy EVERY KIND it could be a PG show then all of a sudden a Mary Sue teenage girl character is introduced to a show and BOOM it's turns into "waaaa I'm so depressed, waaaaaa everybody loves me, waaaaaaa I hate myself, waaaaaaaaa I hate my friend" the show starts to revolve around them more and more until they might as well be the protagonist

That girl: Cuz like, nobody understands me! > ~ < Main character of show: it's ok BB I wuv yoo That girl: nu yoo can't BB that thing wants to kill me *dramatic crying Main character of show: NU BB I WUV YOO NO MATTER WUT Main character's friend: NU I WUV YOO TOO That girl: waaaah whoever do I choose! Waaaaah *five more edgy episodes later about how depressed she is Main characters friend: I will kill da main character for yoo luv That girl: YOO MUSNT NUUUUUU *intesnse crying Main charcter: I kill you 4 her Main character's friend: nu, I kill YOO *edgy montage of them fighting That girl: cricricricricricri Background character: k I luv you now too That girl: I HAZ DEPRESSION NOW WAAAAAAAAH

Next season: The show isn't even what it originally was at all anymore, it's all about the girl now and romance and cooties and blahblahblah Then the show ends because it's starting to become twilight 2.0