Because you like Willow Rosenberg in Buffy the Vampire Slayer

Given his ability to wrench street signs from the ground, Shizuo Heiwajima is a useful one to have in dangerous Ikekuburo. See them in Durarara!!.

A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.

Jessica Davis is the girl that guys like to like. See them in Thirteen Reasons Why .

You'll never get Alaska Young. And that's the whole point. See them in Looking for Alaska.

Pro: Johan Liebert is handsome and charming. Con: he's also a sociopathic killer. See them in Monster (TV Show).

Mike Ehrmantraut is rutheless, merciless, and probably the most endearing hitman you've ever met. See them in Breaking Bad.

From his attire to his form while running, aesthetics rule Rei Ryugazaki's life. See them in Free! Iwatobi Swim Club.

Chicken resterauntier by day and drug overlord by night, Gus Fring doesn't let the stress of living a double life get to him. See them in Breaking Bad.

Years of being the less desirable Vargas sibling have given Romano quite an inferiority complex, as well as the temper to match. See them in Axis Powers Hetalia.

What Mako Mankanshoku lacks in common sense, she makes up for in sheer optimism and force of personality. See them in Kill la Kill.

Knuckles the Echidna is a 16-year-old red echidna (aka a spiny anteater) and guardian of the ancient Master Emerald. See them in Sonic the Hedgehog.

The only defense Earth has against alien invaders are giant robots in the hands of pilots like Kaworu. See them in Neon Genesis Evangelion.