Naruto -> it is too long that I do not even want to start reading, the character is still a child even the series has been released for many years
Vampire Knight -> the female lead character, Yuki, is super stupid, why? she let a vampire (her best friend=Zero (she thinks he is her best friend although he always act super cold to her) became a vampire) bit her to satisfy his hunger for blood, she even did not let her brother, Kaname, who loves her very much, to kill Zero after Zero attempts to kill her. WTH? Protecting someone who tries to kill you? Moreover, from someone who loves you? It is super stupid & I can not stand to read it.