Queen Aura's second child is coming, and with it comes all the perils of politics and pregnancy. Having a baby in a world without modern medicine can be a frightening enterprise, and Zenjiro is committed to doing whatever he can to protect his beloved wife. That goal in mind, he resolves to master the challenging magic of Teleportation. With that power, Zenjiro could summon the finest magical healers of the Twin Kingdoms in the blink of an eye, but learning such an advanced spell will take all his grit and determination. Meanwhile, the nobles of the kingdom plot to use Aura's absence from public duties to claim new powers and privileges for themselves...

Burdens on both Aura’s time and body mean it’s finally time for her to appoint a prime minister and marshal. While the lightening of the load couldn’t be more welcome, the risk of those appointments pushing the country away from her control is stronger than ever. With both that potential and her husband’s future in mind, she grants Zenjirou a dukedom to help maintain the balance of power. Coupled with even more guests from the Twin Kingdoms, the prince consort is in for a fair amount of personal upheaval, but now his wife wants him to head to the Northern Continent with his likely concubine-to-be as well! It’s going to take quite a bit for Zenjirou to feel comfortable with the journey, but their current guests just might have the solution...

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.

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?

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!

In response to the king and crown prince’s maneuverings, Zenjiro decides to change up his tactics in the Twin Kingdoms. His main mission remains to find a healer for his pregnant wife, but Aura has taught him some tricks of statecraft that may help him get ahead. Zenjirou isn’t the only royal heading to the Twin Kingdoms, though—Princess Freya wants to tag along to make some deals of her own! Zenjirou’s first meeting is with Prince Francesco, which seems like the perfect opportunity to get a professional opinion on Capua’s glass-making efforts. The prince is in for a real shock but has a revelation that’s just as surprising for Zenjirou. And that’s to say nothing of Zenjirou’s hopes for a healer. Finding one will mean negotiating with yet more people... Just how will Zenjirou and Freya fare in their political dealings abroad?