The five of them go to every market place in the city and buy all the demon spirits they can find. The others will help them get some raw materials without any problem. Okay, lets go ! Whoosh, why do you have to buy all of these demon spirits? Well, it sounds like a good idea, but it's actually a bad idea, because it'll make you less powerful in the future. The only thing that he hasn't done yet is to crack open a dragon's soul stone. It's a stone that he bought from the prison realm. It can be useful.