First go to Ultimate Contest then go to the biulding called nindo, go inside and talk to Iruka, and choose hands on training. Once you pick scroll collecting(you get 34 scrolls each time you do this) and keep on doing this till you get 999(or as many as you want) then chash them in(you get 100ryo per scroll), and then just start this over if you waqnt more scrolls or ryo.