Sorry for my first topic about it, I haven't enough time for a correct presentation!
Rosario + Vampire is a Japanese manga series that was originally serialized in Monthly Shonen Jump, between 2004 and June 2007; a single extra chapter was serialized in Weekly Shonen Jump in September 2007. In November 2007, the manga began regular serialization again, now in Jump Square, and is ongoing. An anime adaptation started broadcast in Japan, on January 3, 2008PlotTsukune Aono is a painfully average high school freshman, who is unable to get into any private school, due to his disappointing grades. The only school that he is finally accepted into turns out to be a secret school for supernatural monsters (yōkai), who are in disguise as humans. The first student he meets is the beautiful Moka Akashiya, who takes an immediate liking to him for an unusual reason; she is a vampire, and is attracted to the sweet taste of his human blood. Tsukune quickly realizes that his admission into a monster school must have been a mistake and fears for his life.
Despite Moka's vampiric nature, she is a kind girl and Tsukune quickly falls for her. He decides to stay at the school, to be near her, despite the various dangers. He must hide his human identity from the faculty and other students, while trying to keep his grades up and avoiding conflicts with the various not-so-mythological monsters lurking around campus. Tsukune soon discovers that when he removes the rosary around Moka's neck, she transforms into her true form, an S-rank vampire, stronger and more powerful than almost any other creature at the school. However, in this state, Moka has an entirely different personality, often cold and merciless, so the rosary is only removed in dire emergencies. So far, Tsukune is the only person who can physically remove the rosary to transform Moka, and only in the case of an emergency (as is seen in the anime's second episode, where the rosary remains physically bound to Moka while Tsukune attempts to willfully remove it in a moment immediately preceding, but not interjecting, a malignant situation). Tsukune and Moka make new friends and enemies, as their stay at Yōkai Academy progresses.
http://www.dailymotion.com/relevance/search/rosario%2Bto%2Bvampire%2Bopening/video/x40o3g_rosario-to-vampire-opening_music
It's a very kawai manga! I recommended it! The storys are nice! The charcaters are kawai!!
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Rosario to vampire