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.

When he chose to leave Earth and marry Queen Aura, Zenjiro learned that his blood carried an otherworldly ancestry...but it turns out his family tree had more secrets than anyone imagined. The children he and Aura hope to have together could upend the world's peaceful order, bearing powers no one expected. It'll take all of Aura's cunning to navigate intrigue between kingdoms, even while Zenjiro prepares for the possibility of a new addition to their royal family.

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!

PLENTY OF FISH IN THE SEA A young girl calling herself Princess Freya arrives in the Kingdom of Capua, claiming to have sailed from across the northern sea! With Queen Aura preoccupied with matters of state, Zenjiro is sent out to the port city of Valentia to see if he can establish profitable trade between the continents. It’s Zenjiro’s first-ever journey out of the royal palace...what could possibly go wrong?

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?

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!

With his wife Queen Aura now expecting another child, Zenjiro is dead-set on obtaining a magical healer to help her with the delivery. To obtain one, he has no choice but to travel to the Twin Kingdoms and treat with the King of Sharou. Yet no sooner does he arrive than the king makes a shocking announcement about the future of the crown! Fending off one charming guest after another, Zenjiro will need all his wits to avoid getting swept up into the murk of royal intrigue.