Because you like Richard Castle in Castle

Sasuke's quest for vengeance is above all else. See them in Naruto.

Talented but anxious, Shinji Ikari struggles to bear the challenges that life hands him. See them in Neon Genesis Evangelion.

Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.

Armin Arlert was wrong. This world hasn't become hell; it's been hell. He just couldn't see it before. See them in Attack on Titan.