Two months have passed since Zenjirou accepted Queen Aura’s proposal to leave his old life and world behind, and to build a new one as a “sponger” with her. Since their wedding, he’s spent his days luxuriating in the comfort of their relationship, but it seems that carefree life isn’t destined to last. Between his introduction to high society, the question of concubines, and a native disease, he’ll soon have to pay back the debt incurred by those first easygoing months in full. All this and more demands Zenjirou’s attention, and in a complete reversal of fortune, his days go from being entirely uneventful to being overwhelmed by a mass of responsibilities and considerations all vying for his time. On top of everything else, there’s a secret missive from the Twin Kingdoms of Sharou-Gilbelle. Just what does that missive contain, and what new matters await the unlikely prince consort and his queen?

Zenjiro left his life on Earth behind to become the husband of a beautiful queen, but as it turns out, not everything is happily ever after. Behind the smiles of the nobility lurk hidden agendas and ambitious schemes. When even an innocent word or gift carries hidden meanings, can a simple Earthling navigate courtly intrigue? And what does Queen Aura think of all the efforts to ensnare her beloved in a second marriage?

This is the third volume in the saga of our beloved “sponging protagonist,” and at this point, “sponging” is the last thing he’s doing. A year has passed since his marriage to Queen Aura of Capua, and the capital has welcomed their new child and heir to the throne, Carlos Zenkichi. The kingdom is busy with festivities to celebrate the happy news, but something more ominous has reached Aura’s ears. Margrave Gaziel tells her that his territory has had no salt for a year, and with his lands lacking both sea and rock salt, it could spell the region’s end. While the queen immediately orders an investigation, Zenjirou’s free time is becoming more than he can handle in the inner palace, and he starts to investigate what advancements might be made to move their nation forward.

Two years have passed since Zenjiro was summoned to a kigdom in another world and married its beautiful queen. Now, Zenjiro and Queen Aura celebrate the birth of their child--the young First Prince of Capua---and the realm celebrates with them. Yet while Zenjiro is busy adjusting to his new life as a father, a bloody massacre breaks out along the vital Salt Road. A company of knights and warriors rides to do battle with all manner of wyverns, even as a delegation arrives from the Twin Kingdoms with an agenda all its own!

Now that Zenjirou’s adventurers on the Northern Continent have come to a close, he and Aura finally hear what made Lucretia so worried—secrets of the White Empire’s remnants and the hidden history of Utgard. Unable and unwilling to ignore the information—as questionable as it might be—the queen decides to send for the former king of the Twin Kingdoms. The meeting needs to be secret, though, and Margarita’s interest in Völundr is the perfect cover. Although Zenjirou has only just returned home, he soon finds himself heading out to the Twin Kingdoms to fetch the royals both publicly and clandestinely. Everything has started to unfold at once with gifts from the Four Dukes, lessons from his wife, and even communications from yet another country in the North. Zenjirou will have to navigate them all, even if it means any hope of regaining his ideal sponger life is all but lost.

Yamai Zenjirou is your everyday office worker in modern Japan. One morning, he suddenly finds himself summoned to a tropical world where dinosaurs roam the land. He is told that this is the kingdom of Capua and the person who summoned him - its monarch, Queen Aura - wants him to marry her and leave his old life behind for a life of carefree extravagance as her prince consort. The reasons for her offer are many and varied, but she needs an heir, and she wants him to be the one to provide it! If he accepts, he’ll never have to work again, lazing around in luxury with no worries other than securing the kingdom its next monarch. Certainly, sleeping with the buxom beauty is far from a hardship, but is everything really as it seems? He’ll also need to give up everything he knows on Earth. Is he ready to drop it all at a moment’s notice for her sake? And how well will he be able to navigate the politics, people and culture of this new world if he does?

Zenjirou safely returns from the Gaziel march to good news—his wife may be pregnant! With the rainy season setting in, he practices teleportation with more vigor than ever, knowing this new spell will enable him to bring a healer from the Gilbelle family when the child arrives. Margrave Gaziel also returns to the capital, this time accompanied by Nilda. Her addition to the register of names reminds the margrave just how much he owes the prince consort for his actions during the wedding festivities. But is his gratitude a sign that Zenjirou is going too far beyond the bounds of his position as a mere figurehead? Meanwhile, the inner palace is taking applications for new maids, but the Uppasalans have other issues caused by their unfamiliarity with the local climate. Zenjirou’s insight might just offer a unique new perspective for both Freya…and Aura!