The Kumon Dojo was the dojo that was run by Ryu Kumon's father. Very little is known about dojo, save that it was somewhere far from Furinkan and very run down. There were no students, its sensei, Mr. Kumon, had no idea how to attract students or any other job, and it was literally falling apart, with broken walls and a dilapadated roof. The only thing supporting it was a single central pillar.