Super Portable Store

Is leveling up difficult? My shop offers an endless supply of elixirs. Is it difficult to level up your martial arts skills? In my shop, you can instantly reach perfection in your martial arts skills by simply spending money. Do you have a divine weapon? Excuse me, I have a divine weapon from another world. My shop also has the mysterious Cang for sale, would you like one? The protagonist travels through another world with a super portable shop, and there's nothing you can't imagine.