Because you like Konata Izumi in Lucky Star
Oscar Jarjayes is a sword-swinging, fearless Commander of the Royal Guard who cross-dresses as a man. See them in Rose of Versailles.
Years of brutal winters, foreign invasions, and crippling loneliness have left Russia's mental state far from wholly intact. See them in Axis Powers Hetalia.
While his twin tries to save lives, Millions Knives does the best to end them. See them in Trigun.
Misaki Nakahara is keeping tabs on her newest project: recluse Tatsuhiro Sato. See them in Welcome to the NHK.
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.
Fate has forced Amuro into the terrors of war, and he must use the Gundam and all of its power if he is to make it out alive. See them in Mobile Suit Gundam Series.
Nozomu's name translates to despair, which is fitting for him. See them in Sayonara, Zetsubo Sensei.
A laid-back wanderer, Ginko has an empathetic, open-minded worldview. See them in Mushishi.
Char is always thinking two or three steps ahead of the enemy. See them in Mobile Suit Gundam Series.
The vampire that killed Zero Kiryu's family also infected him, and he starts to crave blood, much to his horror. See them in Vampire Knight.
Shana is a red-haired warrior with a black-and-white worldview. See them in Shakugan no Shana.