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!

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!

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??

War in Another World! With one success after another, and connections to nobles and royals alike, things are going well for Mitsuha's General Store. That is, until a neighboring kingdom launches a surprise invasion! At first, Mitsuha intends to stay out of the fray, but after being summoned to a war council meeting, a particular incident ignites a fire inside her. Will the Lightning Archpriestess be able to lead her adoptive kingdom to victory against their attackers?!

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!

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!