Because you like Edward Elric in Fullmetal Alchemist

A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.

Impassive, overly literal, and a little short on people skills, Angel dedicates her life to enforcing the rules. See them in Angel Beats!.

For the sake of science, Kurisu Makise will persevere no matter how deep into the dark secrets of the world she finds herself. See them in Steins;Gate.

Fiercely independent and extremely hot-blooded, Ryuko Matoi prefers to work alone. See them in Kill la Kill.

While his twin tries to save lives, Millions Knives does the best to end them. See them in Trigun.

A laid-back wanderer, Ginko has an empathetic, open-minded worldview. See them in Mushishi.

Shana is a red-haired warrior with a black-and-white worldview. See them in Shakugan no Shana.

China has five thousand years of history, and he's optimistic he'll win over the Allied Powers to the wisdom of his ways. See them in Axis Powers Hetalia.

The "runt" of his biker gang, Tetsuo Shima grapples with a perpetual inferiority complex. See them in Akira.

Yugi Moto is a gentle soul whose determination and talent make him a formidable opponent. See them in Yu-Gi-Oh! .

While he might be too cool for school, Soul isn't too cool to do the right thing. See them in Soul Eater.

Char is always thinking two or three steps ahead of the enemy. See them in Mobile Suit Gundam Series.