"Kings" are individuals who have been bestowed with incredible supernatural powers and granted the ability to recruit others into their clans. Protecting the lives and honor of their clansmen is an integral part of the Kings' duties. After a video depicting the heinous murder of a Red Clansman spreads virally, the unassuming student Yashiro Isana is accused of homicide. Now, a manhunt is underway for his head, bringing him into contact with the infamous "Black Dog" Kurou Yatogami—a skilled swordsman and martial artist determined to follow the wishes of his late master, the Seventh King. Meanwhile, the current Red King, Mikoto Suou, faces his own imminent demise as the search for Yashiro narrows. But during Yashiro's struggle to prove his innocence, a greater conspiracy is unraveling behind the scenes; clouds begin to appear in his memory, and close friends start to question his very existence. What began as a simple murder is now leading towards a full blown war between Kings with the very fate of the world at stake. Isano Yashiro (aka: Shiro-kun) is a student at the massive Ashinaka High School that takes up an island in the bay. He's a little spacey, does not stand out much, is fairly well liked, and tends a small white kitten named Neko (Cat in Japanese). Unknown to most people, this is an era of Kings: Seven people linked by an unknown process to an artefact called the Dresden Slate that confers incredible power they can share with a clan of followers. Each is represented by a rank, colour, and fundamental power of Nature.Strange things start to happen, shortly after the death of the Seventh Colourless King, when a video of Shiro surfaces showing him gunning down a Homura (Third Red King) clansman in cold blood and claiming to be the new Seventh Colourless King. Now, with no memory of the incident, he must deal with the pursuit of two Kings and their clans, a follower of the previous Colourless King, the Black Dog, who is trying to kill him as anevil king, and Neko who has turned into a naked cat-girl that can dance between the perceptions of others.