The newly opened gallery café Gold Coin is a huge hit with the locals thanks to the savvy manager and waitress running it. Meanwhile, the café's owner Mitsuha is going on an undercover mission to the New World. Disguising herself as a foreign noble/royal, a sweet innocent fan of the navy, and even as the Envoy of the Goddess, Mitsuha gathers intel and spreads disinformation, sowing her seeds for future invasion. Joining forces with a young and ambitious local merchant, Mitsuha plots to tip Vanel's economy with Earth's spoils: sugar, spice, and other nice but useless foodstuff. Dodging pushy nobles, meeting the King of Vanel, and introducing a new business plan to Yamano County, the world-jumping heroine is on the fast track to becoming...the head of a secret evil economic empire?!

Mitsuha is your average teenage orphan-until one day she falls off a cliff, and finds herself in another world strangely akin to medieval Europe! Beset by wolves, she discovers she has the ability to travel freely between the two worlds, and decides to make a life for herself in both. Now all she needs to do is save up 80,000 gold coins for a comfortable retirement... Piece of cake, right?! No matter how out of control things get, Mitsuha keeps her cool, turning every hurdle into a business opportunity. From shopkeeper to war hero to viscountess, her meteoric rise seems unstoppable-but with each success comes new obligations and new costs. Does every step up just take her further from her goal??

Mitsuha and her hired mercenaries, Wolf Fang, have just about wrapped up their battle against the invading Imperial Army and its monsters, wyverns, and dragons. And what awaits Mitsuha as a reward for her efforts but her very own viscounty! She's now a noble landowner in the other world at 18 years old?! So much for just trying to make gold for her retirement...

Joining forces with the ambitious merchant Lephilia, Mitsuha is on a roll in the New World. But now their inventory's been stolen by a jealous rival! She's not letting them get away, though. It's payback time-with the cunning use of her world-jumping ability, of course. In this volume, our heroine is cooking up even more storms: an exclusive club for young noble girls, a manmade island, and a new kind of weapon that'll knock a boy's socks off?! Sure, saving up gold coins for her retirement is important, but right now, Viscountess Mitsuha von Yamano is amped up to undermine her enemy and strengthen her own county's and kingdom's economic power like a full-fledged ruler!

Mitsuha Yamano falls off a cliff, at which point she finds herself transported to some sort of medieval European fantasy world! While there, during a battle with some wolves that almost costs her her life, she realizes that she has the ability to come and go between Earth and this new world. Mitsuha decides to use this ability as much as she can. Why? To save up for retirement, of course! She sets her sights on saving eighty thousand gold coins--and this is the story of her schemes to get there!

Get that 2 billion yen for an easy retirement! And look at that—there's a little cutie tagging along! Having lost her family to a freak accident, eighteen-year-old Mitsuha Yamano was left to fend against the harsh world all on her own. She was at a loss, thinking about her future, when a mysterious entity gave her the power to jump between worlds. How will she wield it...? While at times Mitsuha can be a huge ditz, she's a tough nut to crack. She begins using all the modern tools and knowledge at her disposal to carve her own path in this money-making fantasy set in a medieval world!

Having saved the kingdom from invasion, Mitsuha suddenly finds herself elevated to the rank of viscountess. Exploiting her world-jumping ability to the fullest, she's now busy improving things in her new domain (with a little help from Earth's advanced knowledge and technical skills). But with ballroom season on the way, it's her obligation as a noble to return to the capital. Sure, the timing couldn't be worse, but it might also present a perfect chance to showcase her new flagship product-popcorn?! That's not the only iron Mitsuha has in the fire, though: when she decides to hold a tournament to drum up sales for a new line of board games, things go a little too well! Between that and the arrival of unexpected visitors from a distant land, the newly-minted Viscountess Mitsuha von Yamano really has her hands full!

Having completed their diplomatic delegation, Mitsuha and the girls finally get to go home…but there's no time for our heroine to relax! In Japan, she becomes a small business owner and also opens her first store on Earth: an art gallery café. In the other world, the viscountess ventures solo to the enemy land across the sea, and even launches another shop! “I am Nanoha, crosser of dimensions in the name of a wandering god! I cast open a path to another world!” Using her world-jumping ability, Mitsuha becomes an explorer of the New World, a spy, a sculpture artist, and more! There's no stopping her now! Business is booming in volume 4!

Thanks to her ability to freely travel between worlds, Mitsuha’s business is booming. One day, she witnesses a group of men trying to abduct one of her female customers. Mitsuha stops them with her stun gun, taking the opportunity to deliver a cool line she has always wanted to say... “I am the Lightning Archpriestess! Those in my way deserve no mercy!” After dealing with the would-be kidnappers, she discovers that the girl she saved is actually a princess! Just as Mitsuha tries to flee the scene, she is invited to the royal palace. Just how will our general store manager fare when called to an audience with the king?

Mile left Marcela, Aureana and Monika behind when she fled Eckland Academy, but when a job takes the Crimson Vow back into the Kingdom of Brandel, she can't pass up the chance to see her old friends. But the Wonder Trio aren't ready to let Mile go again now that they have her back! it's tug of war time, and Mile's in the middle! Will she be forced to choose one set of friends over the other?