Hi there! What jade? the one for upgrading equipments? Just keep them, maybe in the future, they will update the exchange/redeem shop in spacetime strongest ..

Keep it for now.. There's still more future updates that will happen, and maybe one of them is the redeem/exchange store in the SpaceTime Strongest.. :D

I don't know and I'm not sure .. Well, having those items in my inventory has nothing to do with my overall gaming experience, so i just let them there so when the update happens, i have something to dispose and earn good :D