After quitting his job at a toxic company, Shiro Amata moves into the house his grandmother left him in her will. There, he soon makes two life-changing discoveries: one, his grandmother was really a witch from another world, and two, said other world is just on the other side of her closet door! Thanks to a book she left for Shiro, he also manages to obtain an all-powerful skill called “Equivalent Exchange,” which allows him to turn money from his world into otherworldly currency and vice versa. With this, Shiro decides to set up shop and sell convenient items like matches to the colorful inhabitants of the other world. His plan: make a massive profit on the goods he brings from home to become so rich that he never needs another job ever again!

After quitting his job at a toxic company, Shiro Amata moves into the house his grandmother left him in her will. There, he soon makes two life-changing discoveries: one, his grandmother was really a witch from another world, and two, said other world is just on the other side of her closet door! Thanks to a book she left for Shiro, he also manages to obtain an all-powerful skill called “Equivalent Exchange,” which allows him to turn money from his world into otherworldly currency and vice versa. With this, Shiro decides to set up shop and sell convenient items like matches to the colorful inhabitants of the other world. His plan: make a massive profit on the goods he brings from home to become so rich that he never needs another job ever again! Based on the light novel of the same name.

After a successful trip to Mazela where his products quickly became the talk of the town, Shiro returns to Ninoritch with the intention of slipping back into his usual routine at the store. Cue his two younger sisters turning up on his doorstep to throw his life into disarray by announcing they plan to stay at his house for a while. Unsurprisingly, it doesn’t take the twins long to find the portal to another world in the closet. Keen on exploring, they set out into the forest on the other side with Shiro, who tags along to make sure his fearless sisters don’t meet an untimely demise. All’s fine and well—until one of the girls finds a mysterious giant egg and insists on taking it with her. Just what kind of egg is it? And how will the siblings deal with whatever hatches out of it? More to the point, will Shiro be able to cope with his two high school-aged sisters running around and causing mayhem in his adopted second home?

Shiro’s first venture into a dungeon—albeit accompanied by the majority of the adventurers attached to the Fairy’s Blessing guild—turned out to be a resounding success. With the grimoire written by Nathew (the Father of Alchemy himself) in hand, he was able to perform the ritual that summoned lost loved ones without a hitch, allowing everyone to say one last goodbye to their dearly departed. Yet one much-missed soul was conspicuously absent at this gathering of spirits: Aina’s father. What could this mean? Is he still alive somewhere? And if he is, how can Aina and Stella find him after being parted for such a long time? Shiro has little time to ponder these weighty questions, however, because a familiar face is moving to Ninoritch, and Shiro is forced to rush around preparing lodgings for the imminent arrival of their entourage. But what could possibly bring such a distinguished person to this tiny little town out in the sticks?

Ninoritch’s harvest festival has been a resounding success, but just as it’s wrapping up, Shiro gets accosted by a young woman claiming to be his grandmother—the very one who vanished years ago! Shiro’s not sure what to think at first, but he quickly realizes she’s telling the truth...even if she does look sixty years younger than how he remembers her. Meanwhile, Karen has to trek to the capital to pay the town’s taxes to the lord of the region and attend his annual banquet. This proves a great source of anxiety for Ninoritch’s beautiful mayor. How in the world is she supposed to attend an exclusive high-society function when she has absolutely nothing to wear? Thankfully, Shiro’s there to save the day. For one night only, he’ll become her personal stylist and make sure she’s the most dazzling head-turner at the party!

On his return from the royal capital, Shiro learns that all is not well in Ninoritch. An encounter with the spirit of a loved one in the depths of some ruins has caused disquiet to spread among the adventurers of the Fairy’s Blessing guild, and unsurprisingly, all sorts of theories have been bandied about on the true nature of the apparition. This naturally piques Shiro’s curiosity, but he has little time to ponder the real meaning of this paranormal encounter before the town’s beautiful mayor, Karen, asks for his help with something urgent. Due to a variety of reasons—including Shiro’s burgeoning fame as a peddler—there is a major influx of people turning up in Ninoritch, and there isn’t anywhere near enough food, jobs, or houses in the little town to accommodate everyone. Between them, can Shiro and Karen find a solution to the problems caused by this sudden population explosion? And are people really able to meet loved ones who have passed on in these mysterious ruins?

Just as Shiro’s settling in to his peaceful life as a merchant in Ninoritch, he is rocked by the news that the grandmother he believed to be long deceased is, in fact, very much alive. What’s more, she’s apparently somewhere in Ruffaltio, the fantastical world Shiro can visit through his closet. This discovery gives him a new objective: find her and ask her why she’s been pretending to be dead all these years. But rather than going on a wild goose chase in search of her, he decides to stay in Ninoritch in the hopes that she’ll visit for the annual harvest festival. In the meantime, the Blue Flash adventuring party asks for Shiro’s help in gathering some rare medicinal herbs, a quest that takes him to the sprawling forest just outside town. But when he ends up separated from the group, he finds himself relying on the help of a mysterious girl... Just who is she? And why is she so tiny?