The ranks of the Demon Corps are as follows: The Nichirin Katanas are a type of Katanas that are obtained when entering the Demon Corps. So if you like Roblox, .io games, Happy wheels, geometry dash, or just about any game you can have fun on, make sure to Subscribe for more videos!\r\rWhat is Roblox?\rROBLOX is an Free app online virtual playground and workshop for kids, where kids of all ages can safely interact, create, have fun, and learn.