Because you like Lady in Lady and the Tramp
The only defense Earth has against alien invaders are giant robots in the hands of pilots like Kaworu. See them in Neon Genesis Evangelion.
The son of Death has an obsession with perfection and symmetry. See them in Soul Eater.
Spike Spiegel is a bounty-hunter with a laidback style and lightning-quick moves. See them in Cowboy Bebop.
Titus Andromedon will show you the ropes, help you with your problems, and sing at you constantly, whether you like it or not. See them in Unbreakable Kimmy Schmidt.
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.
While Cassie Ainsworth's head is always in the clouds, her heart is always in the right place. See them in Skins.
Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.
Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.
An aloof punk rock goddess, Nana Osaki has a surprisingly big heart. See them in Nana.