I Have a Hyperdimensional Store

Someone who is struggling in another world suddenly obtains a super-dimensional store and can trade with customers from infinite dimensions in the world! All in all, this is the story of a time traveler who, after obtaining a super-dimensional store, turned into a black-hearted businessman and took advantage of the situation in various worlds! Ps: The introduction is weak, just go straight to the text ps2: Trading world order, Attack on Titan Demon Slayer? ? ? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.