A mysterious, unnamed bus driver who seems to know more than he reveals and constantly shows up to offer advice to Tsukune, he is usually portrayed smoking a cigar. He is the one who requests the board chairman help keep Tsukune's ghoulish nature at bay. It is unknown if the bus driver is human or a yokai, but he does have an extensive knowledge in the supernatural, having identified Ishigami's Lilith Mirror as the cause of the uproar during the school festival. He seems to know about Tsukune secretly being a human being, but it is only subtly implied.  

~!He is also one of the three Dark Lords (but this is only in the anime).!~  

By a bizzare coincidence, Tsukune Aono has accidentally gotten himself admitted to a youkai academy, a school attended by monsters. Just when he thinks he'll run away from there, he meets the beautiful girl Moka and his mood turns ultra happy. However, she transforms into her true form when the rosary on her chest is taken off, she's a super vampire!

[Profile](http://www.enkikaku.jp/men'sprofile/inoue-prof.html)

A year has passed since Tsukune was sent to the Youkai academy. Tsukune has gotten used to life there, or so he thought. As a second year, him and the girls are looked up to by the juniors. On the first day back to school, a sudden encounter with Shuzen Kokoa, takes a turn for the worst. What Adventures or should we say, misadventures await our human, vampire and friends?

Average human teenage boy Tsukune accidentally enrolls at a boarding school for monsters--no, not jocks and popular kids, but bona fide werewolves, witches, and unnameables out of his wildest nightmares! 
On the plus side, all the girls have a monster crush on him. On the negative side, all the boys are so jealous they want to kill him! And so do the girls he spurns because he only has eyes for one of them--the far-from-average vampire Moka. 
On the plus side, Moka only has glowing red eyes for Tsukune. On the O-negative side, she also has a burning, unquenchable thirst for his blood...
 
(Source: Viz Media)

All-around average student Tsukune can't get accepted to any high school save one...but on his first day, he finds the rest of the student body doesn't appear average in the least. Best of all, the cutest girl on campus can't wait to fling her arms around his neck! Wait a sec'--are those her teeth around his neck too...? Tsukune's going to have one heck of a hickey when he gets home from Monster High! But does he have a chance in H-E-double-hockey-sticks of raising his grades at a school where the turf war isn't between the jocks and the nerds but the vampires and the werewolves?
 
(Source: Viz Media)

Untenshu