Oh Ive been advertising this one about a lot. I really think te would like Nurarihyon no Mago. Its probably my preferito and it includes Yokai (Demons) and some great fights and the main character is gonna be the Third Heir to the Night Parade of 100 Demons and such not..... Its hard to explain really...... It has 2 Seasons totalling up to about 50 episodes. Nurarihyon no Mago and Nurarihyon no Mago: Sennen no Mayou. Here the animelist stuff:
link Other Animes I personally liked:
Bleach: Its one of the Big 5. Basically about Shinigami (death gods) and hollows. Its 366 episodes long so Im just gonna say that
Code: Breaker: Just an interesting shonen about a group of people who have Codes 1-6 with some kind of ability. Its a funny Anime with good action. It has 13 episodes.
Code Geass: One of the classic with 50 episodes 2 seasons. About Giappone gaining its land back from the UK under a teenage named Lelouch that has the power of the Geass and great chess skills. He leads a small group that becomes large.
K: Another good action that has some Supernatural abilities and run under a couple groups. Red King, Blue King, Silver King, etc. Each with different ideals and symbols. It has 13 episodes.
SAO: Its an Anime with 25 episodes. A virtual reality MMORPG is made and people go into it and get trapped as a planned feature that wasnt shown to the Beta Testers. They have to beat all 100 floors and bosses to allow them to log out. The catch is if te die in the game te die in real life.
Nabari no ou: It 25 episodes long (i think) and the main character posseses a power called teh Shabansho (something like that) that the groups of ninjas all want for a different reason. (Its hard to explain XD)
Attack on Titan: Im sure te heard of this one da now. Its going to be 25 episodes long and its on episode 21 o 22 now. Basically humanity was pushed back into tall walls because of the titans that appeared that only eat humans because they want to.
Majin Tantei Nougami Neuro: It is about a demon detective that ate (solved) all the mysteries in hell and came to earth to find the ultimate mystery. He works with a teenage girl. Oh btw, he eats mysteries. There isnt much fighting but at the end it makes the fight all the much better. I believe it is 25 episodes long
frutta Basket: Im not going to say its my preferito but I think te would like it. It is about the Chinese Zodiak and stuff and its a shoju with 'supposivly' hot guys....... I can argue but meh.