Because you like Alphonse Elric in Fullmetal Alchemist

Lelouch vi Britannia is a high school student by day, masked destroyer of tyrannical empires by night. See them in Code Geass.

Oscar Jarjayes is a sword-swinging, fearless Commander of the Royal Guard who cross-dresses as a man. See them in Rose of Versailles.

An alien, a time-traveler, and an esper are following Haruhi Suzumiya, who – unknown to herself – is a near-omnipotent reality warper. See them in The Melancholy of Haruhi Suzumiya.

Whatever Sakura Haruno lacks in power, she makes up for in intelligence and bravery. See them in Naruto.

An exuberant prankster, Naruto Uzumaki craves acknowledgement of any kind. See them in Naruto.

His superiority complex coupled with his bitter desire for revenge makes Vegeta a formidable foe. See them in Dragon Ball Z.

Tidus is upbeat, carefree, and desperate not to become his father. See them in Final Fantasy Series.

Where Ash comes from, food and shelter pay for themselves. Even as a penniless vagrant, he is able to pursue his dream of becoming a Pokémon Master See them in Pokemon.

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

A nurturing, selfless, and level-headed leader, Makoto Tachibana loves looking out for his friends. See them in Free! Iwatobi Swim Club.

Other people's opinions have never mattered much to Haruka Nanase, and they aren't going to start to do so now. See them in Free! Iwatobi Swim Club.