Mukouda Tsuyoshi was nothing special in modern Japan, so when he was summoned to a world of swordplay and sorcery, he thought he was ready for the adventure of a lifetime. Too bad the kingdom that summoned him only got him by mistake! Not only was he not one of the three summoned heroes, but his stats were laughable compared to theirs. On top of that, there's something really sketchy about this kingdom... "Ah, these people are the kind to try and use the Hero," he realized, and immediately left to make his own way in this other world. The only thing Mukouda can rely on is his unique skill: the "Online Supermarket," a skill that allows him to buy modern goods in a fantasy world. It's useless for combat, but if he plays his cards right, he could lead a comfortable life, maybe? At least, that's what Mukouda thinks, but it turns out modern food bought with this skill has some absurd effects! What happens when Mukouda introduces ridiculously tasty modern cooking to a fantasy world like this? He gets some ridiculous repeat customers begging for more...!

Mukohda’s latest adventure has given him a major windfall. But with more money comes more...goddesses, each vying for a slice of his supermarket pie in exchange for their blessings. What’s a man to do when he’s suddenly drowning in wealth and power? Start a business? Go on more adventures (or have adventure come to him)? How about looking into the one luxury he might value almost as much as good food?

It's great being a hero! Super powers, loved by every-- wait, what? Brought over by mistake? These stats are awful, and the kingdom sure seems sketchy... And so begins Mukouda Tsuyoshi's life in another world. And if he thought his strength was bad, his special skill is... accessing his old online supermarket?! It's useless for combat, but if he plays his cards right, there's gold in rare goods. At least, that's what Mukouda thinks, but it turns out his modern food might be more special than it appears - and in this world, Japanese food isn't an everyday sight! Quiet days lead to silent storms, especially once a gluttonous fenrir starts causing trouble and asking for seconds!

Having decided to flee from the kingdom that brought him to this otherworld, Mukohda and Fel continue their journey. Along the way, Mukohda quickly learns the ropes of having a familiar, and all the trouble that can entail.

The trouble with having the strongest Familiar in all the lands is that word spreads pretty quickly about who you are and what you're up to. For our heroes, this means having to run all sorts of annoying quests to keep the guilds happy while managing not to provide ludicrously overkill results!

The first stop on Mukohda’s journey out of Karelina with his familiars is Krehl! When checking in at the Adventurer’s guild, they’re asked to scope out a creepy forest filled with spiders and unknown danger, but maybe there’s something else lurking in there for them as well? And as usual, a new town means new specialties to shop for! Then it’s off to Dolan, the dungeon city, to meet the dragon-obsessed guildmaster and get a bit of exercise.

After conquering dungeons and finally getting some leverage over the gods ganging up on him, Mukohda sets his sights on the domestic life. With his new palatial manor fully staffed with trustworthy servants and guards, it seems like as good a time as any to focus on building up his long-neglected business of selling Japanese goods in this otherworld. But he’s suddenly found himself in the sights of an unscrupulous competitor, backed by a shady lesser noble, who is after the secrets of his luxurious soaps and hair treatments. Without relying on the brute strength of his overpowered familiars, Mukohda’s going to have to fight fire with fire and play politics himself. But in order to prove himself, he’ll need to provide something truly valuable to grease the wheels with Earl Langridge. What happens when otherworld magic and the marvels of modern product engineering collide...?