Story (3)
Usually it's difficult to define the story for an ecchi anime; but for this one it is almost impossible. A human guy accidentally ends up in a school for monsters; and for some reason he only makes female friends who also become in love with him; well, that's the story. But then again, who watches ecchi for it's brilliant stories...
Characters (6)
The main guy is called Tsukune, and he is your typical male ecchi/harem lead, nothing to comment on further.
The main girl is Moka, who is a vampire, but unlike you would expect from a vampire she is very kind and cheerful (she reminds me a bit of Lala). She becomes Tsukune's first friend, loves sucking his human blood and falls in love with him. The only interesting and unique part about Moka is her rosario; if removed from her chest Moka becomes her true self (a true vampire); her personality changes and she becomes much more powerful.
Furthermore, 3 more girls join Tsukune's harem. The first one being Kurumu, a huge boobed succubus who tries to win him for herself. The second girl is the child witch Yukari who tries to behave like the older girls. The third girl is Mizore, a yukki-onna, and stalker.
Further characters include Gin, a guy who likes to take pictures of girls in their underwear, a teacher with cat ears and tail, Ruby another witch, Kokoa, Moka's younger sister, a bat who serves as narrator and many other minor characters.
Overall, the characters lack personality but who cares, there are some cute girls.
Art (8) and Sound (4)
I will be short on this one: the art is very good, but the sound (music) can be annoying at some times.
Enjoyment (6)
There is a lot of fanservice in the anime, this fanservice mainly consists of pantsu shots, of course for a man this is enjoyable and occasionally give a good laugh.
But even so many pantsu shots get repetitive, some uncensored boobs might have been a welcome sight.
Unfortunately, besides the fanservice the episodes are boring and repetitive. Every episode is the same (except maybe 1 or 2): all girls fight over Tsukune, then Tsukune gets harassed by some kind of monster, Moka comes and Tsukune removes her rosario, and vampire Moka kicks the monster's ass.
Overall (6)
Overall the anime is very repetitive, both the fanservice (just pantsu shots) and the events in every episode. Whether you like a good story, or ecchi and fanservice, there are better shows out there; so I can't recommend watching this anime unless you would exactly like to know which colour underwear each girl is wearing.
