Fifteen-year-old Tsukune Aono is average in every way; he has no hobbies, less-than-stellar grades and he's even flunked his high school entrance exam. His parents have managed to enroll him in a school, but it's no ordinary school! Tsukune will be attending the Youkai Academy, a place where monsters learn how to co-exist with humans! As the werewolves, vampires, witches and other monsters are required to retain their human forms, Tsukune - the lone human - is able to avoid their bloodthirsty gazes. However, he quickly attracts the attention of a number of devilish beauties including the vampire Moka, a busty succubus and even a young witch! It seems Tsukune's average life isn't so average anymore!
Shido Itsuka was born in a world where widespread catastrophes of varying size called spacequakes can happen anytime and anywhere, razing everything in the vicinity. When his city's alarm forewarns one impending, the teenager races to his sister Kotori in an attempt to rescue her. But upon his arrival, the spacequake transpires in that very spot, and standing in the middle of the destruction is a beautiful sword-wielding girl. Soon after, he learns she is one of many beings called "Spirits" who cause the disasters, and charming those like her is the solution to preventing them. Effective immediately, Shido must date Spirits and make them fall in love with him, because if he cannot, mankind's destruction may very well be inevitable.
A male lead surrounded by powerful supernatural creatures who so happen to have an attractive female figure. Actually the female figure is probably a main character in it's own right in both anime as it get's a lot of focus. Both series sport a token loli-type girl while the rest are considerably endowed. In both series the male lead is very much the underdog powerwise but Date a Live gives the male lead some survival tools while Rosario to Vampire's anime does not. The premise in both series revolves partially on not pissing of said powerful girls however that's where the similarities end, both have very different settings beyond what I described above but both rest firmly in the harem genre.
Throughout the ages, fairy doctors served as liaisons between humans and fairies; but in the present time of the 19th century, fairies are nothing more than an old wives' tale. Nineteen-year-old Lydia Carlton is one of the only remaining fairy doctors and enjoys a quiet life in the countryside of England - that is, until the dashing Edgar, for mysterious reasons, whisks her away on a daring adventure. Said to be the descendent of the earl of the fairy nation, Edgar desires the noble sword of the merrow that serves as proof to his lineage. Though his motives and origins are questionable, Lydia now sets forth to help Edgar on his quest.
$10 can not only buy you a cute hamster; it also get you a devoted housekeeper who will cook, clean, put on suntan lotion, and cheer you on when your relationships get stale! Does it seem like a dream? Then picture what life would be like if anybody who calls your house gets to know the contents of your underwear drawer! If you can’t imagine what rodents and ecchi have to do with each other, then enter the life of the hamster Ebichu, her sexy master, and the good-for-nothing boyfriend Kaishounachi, and see why a talking hamster can be such a bother!
For Kouta and Yuka, finding the bloody naked young girl on the beach would change their lives forever, for better or for worse. Unable to speak or function as a normal human being, she is named Nyu by the duo, and taken into their home in an effort to save her. But what neither teenager knows is that this innocent young girl is actually a killing machine -- an experiment gone terribly wrong -- and it is only a matter of time before the murderer in her awakens again...
Rosario to Vampire and Elfen Lied, although seemingly unrelated the personalities between Lucy and Nyuu and Mako’s vampire form and human form have similarities in the characteristics that each portray. The transformation has a more mature attitude and seems to be more capable all around while untransformed there is an innocent girl in place that relies on others for help.
Once upon a time, two brothers passed the happy days of their childhood by studying alchemy, which is governed by the equal transfer principle: an eye for an eye -- you can't get more than you give. But these brothers tried to defy that law, and a horrific accident resulted. Now, the older brother, Edward, is called the Full Metal Alchemist because of his metal limbs, and the younger, Alphonse, is a soul without a body, trapped within the confines of an automaton. Together they search for the power to restore themselves, to find the lives they lost so long ago...
Both series contain a budding protagonist and a light-hearted mood with fun accompanying characters. There are many similarities between the two and it's inexperience, friendship in that world 'out there' that shine through in both. You'll like these!