Historia
One day, Wataru stumbles upon a gate that allows travel back and forth between Japan and another world. Beyond the gate is a fantasy-like world. Seeing a town whose civilization was undeveloped in many respects, he realizes the potential for great profit. In other words, bringing sugar, spices, coffee, hygiene products, and the like to the other world and making a fortune.
Sinopsis vía AniList (en inglés).
