Kanayama Jou AKA King Joe was the leader of Housen with an iron fist for years. Considered the greatest man in Housen's history, he took control of the school in his first year. He was known for ending the Bitou dynasty at Housen.
One of The Four Kings in his generation,which according to Fujishiro Takumi, Joe is the most terrifying even among them. A testament to this is when as a first year he almost beat the Kurotaki Alliances president Osamu Furukawa but was countered at the last minute. As a freshmen Joe was very ambitious, and always looked for a good fight, of The four kings he only has a single one on one with Takeda Kousei, though the winner of the fight is never revealed.
In the twilight of his reign as Housen's leader, the Moonlight Brothers pushed Joe to start a war with Suzuran. He complied, despite knowing that Housen would completely lose against the School of Crows. Joe proved to be quite the strategist and did everything in his power to make sure Housen defeated Suzuran, elaborately ambushing three of their key leaders, including Zetton, which he supervised personally.
Joe took advantage of the war to pass the reigns of Housen's leadership onto Tsukimoto Mitsumasa, who was forced to sit out the one-on-one matches. By forcing the younger Moonlight Brother to not participate in the matches, Joe taught him a vital lesson in the ways of leadership. Joe was also the only Housen member who won his one-on-one match against Katou Hideyoshi in the war against Suzuran.
Kanayama moved to Housen from Okayama. In his freshman year, King Joe began making a name for himself among the freshmen year. Tsukimoto Mitsunobu, who was favorite to rule the freshmen class and inherit the leadership from Bitou Hideyuki, heard rumors of King Joe and decided to challenge him. When Tsukimoto and six of his followers confront him, King Joe states that if he beats Tsukimoto and his six followers, he will be the top of the freshmen class. King Joe took out a frying pan and began beating them, stating that in a 6 vs 1, this was his handicap. After beating Tsukimoto, King Joe stood above the freshmen class .
Towards the end of the year, King Joe called out Tatsuya to the roof top of Housen. King Joe asks him that he isn't the leader of Housen, but that his brother Hideyuki is the leader. When Tatsuya asks him what of it, King Joe proceeds to ask what would happen if he defeats Hideyuki. Tatsuya replies that he would then be Housen's leader. King Joe tells him that he is glad it is that simple, to which Tatsuya asks for his name and that King Joe states he was pleased to meet Tatsuya .
The next day, King Joe took out Tsuchiya Yutaka and three others from Kurosaki Industrial . Later, when word got out of the incident, King Joe was called up to the judo hall by Hideyuki. When Matsuda lam blasts King Joe stating that the Kurotaki Alliance is five schools and will out number Housen. King Joe knocks down Matsuda and states that a small empire that keeps giving way to large empires out of fear of being outnumbered will stay a small empire forever and that if that line of thinking continues, Housen will never break free to the top . King Joe turns to Hideyuki and tells him that he will settle for Housen and challenges him. Hideyuki saw why Tatsuya was impressed.
When Matsuda awakes, he is suprised to see King Joe puffed out and Hideyuki lying on the floor . King Joe apologies to Matsuda for striking him and that now, the leader of Housen is King Joe. Hideyuki tells the astounded Matsuda that Joe is correct and that he beat him fair. Hideyuki tells Matsuda to get the second years behind King Joe as Hideyuki and his brother were moving to Tokyo for family reasons. Hideyuki leaves King Joe with words of wisdom stating that he will have his hands full with Kurotaki, Armament and Suzuran, with King Joe replying that he is looking forward to it.
After becoming leader of Housen, King Joe began making plans of his own. King Joe receives word that the freshmen heads of the Kurotaki Alliance are meeting up at a cafe at 3:00pm tomorrow. King Joe laughs, saying that if information like that is leaking out, then it seems that the first years are not keen to work together for the alliance . He tells Ujiie Jun and Ebana Katsutoshi to take 30 of the Housen Killer Corps and crash the party tomorrow. When They ask King Joe if he is coming as well, Joe says that he has other business to take care of.
In the next day, when the suprise attack is about to begin, King Joe is spotted in another part of the town by Katou Hideyoshi and Kobayashi Masanari. King Joe is seen approaching Furukawa Osamu, the president of The Kurotaki Alliance. Masa realizes that with Bitou and Kunou Ryuushin gone, King Joe plans to take out Bulldog and then Bouya Harumichi to reach the top.
When King Joe begins fighting Bulldog, it seems he has the upper hand. However, when he is about to deliver his final blow, Bulldog knocks him out .
After an incident where eight Housen soldiers and Housen's number 2, Ujiie Jun were beaten by a Suzuran freshman, King Joe invites Hanazawa to meet him and warns him to approach the situation carefully, stating that if the balance at Suzuran is disturbed, then the balance in the entire town will be disturbed.
When word got out that Hanazawa lost to Hanaki Guriko, King Joe states that he was an idiot.
One day, three Housen's students met with three Suzuran's students. After a fight started between them, one of the Housen's snapped and went after any Suzuran he would find, and he got Kobayashi Masanara by surprise, knocking him out with bat, in response, they were hunted by Katou Hideyoshi. King Joe acted fast to ambush and take out of the battle Suzuran's key fighters and he set a trap to Zetton with the help from his seniors Uchida and Kadoya. They attacked him with pipes, he was able to beat them but was too tired and injured to fight against King Joe .
The war was very intense and caught the attention of the police and they had to lay low for some days. They decided to have a final battle in the Monsters Forest. To such a fight King Joe invited Shinsuke as an observer, Shinsuke decided it would be a 5 vs. 5 match. As Housen lost the first three fights, King Joe said to The Moonlight Brothers that he knew it would happen, but they should not lower their heads. Housen loss the next fight and King Joe faced Hideyoshi in the last one. Masa interfered when Hideyoshi was already beaten , and that made both sides ignore the 5 vs. 5 and go in an all out war.
As King Joe was going to graduate soon, he passed the baton to the Moonlight brothers.
- King Joe vs. Mitsunobu, 5 underlings - Won 
- King Joe vs. Hideyuki - Won 
- King Joe vs. Tsuchiya Yutaka - Won 
- King Joe vs. Bulldog - Loss 
- King Joe vs. Takeda Kousei - Unknown 
- King Joe, Ujiie Jun vs. Kuzugami Tatsuo - Loss 
- King Joe vs. Zetton - Won 
- King Joe vs. Hideyoshi - Won 
- King Joe vs. Tsukimoto Mitsumasa - Won