"Do you know Human, fuck it, sentient nature Mr.Aono?..."
-Colonel Teun Rijnder to Tsukune Aono after the later questioned his rather nihilistic lession in a history course regarding earlier Multiversial history
Tsukune Aono (nicknamed Tsuki by his cousin Kyouko) (June 22nd, 2379) is a Human native to Mulr'kiza Earth. He is mistakenly enrolled in Yokai Academy, a high school dedicated to teaching monsters to peacefully live alongside humans in disguise, where he meets and falls in love with Moka Akashiya, a vampire who takes a mutual interest in him (and the sweet flavor of his blood). Tsukune becomes a member of the school’s Newspaper Club and eventually befriends several monster girls including Kurumu Kurono, Yukari Sendo, Ruby Tojo, and Mizore Shirayuki—all of whom become infatuated with him and form an unwanted harem—as well as Kokoa Shuzen, Moka’s younger half-sister. He also makes friends with several male monsters such as Ginei Morioka, Hokuto Kaneshiro, Fang-Fang Huang and Haiji Miyamoto.