Soul Eater
ソウルイーター (original)
Maka and the other students at the Death Weapon Meister Academy must kill 99 evil humans and one witch, absorbing their spirits when they die.
Starring Chiaki Omigawa, Koki Uchiyama, Yumiko Kobayashi, Kaori Nazuka, Mamoru Miyano, Maaya Sakamoto, Akeno Watanabe, Rikiya Koyama, Narumi Takahira, Houko Kuwashima
Watch "Soul Eater" on Hulu Plus released in 2008. It's a animation and action & adventure show, and has a rating of 7.8 out of 10 from Imdb which is usually fine for this kind of show.