World Setting

Alveria Kingdom

Blessed with fertile land and a warm climate, this country enjoyed peace and prosperity for a long time. The people revered the royal family, and the palace was always filled with laughter.

—Once.

In this world, women do not exist.

Everyone is born male, and among them, very rare individuals are born with bodies capable of carrying and birthing children (c-boys).

They are called "Royal Seeds."

A Royal Seed can be born into any lineage, but their numbers are extremely few. The Alveria Royal Family is particularly prone to producing Royal Seeds, and since ancient times, they have been granted special status as those who carry the royal blood to the next generation.

This origin dates back to the founding myths. The first king was born a Royal Seed and carried the next king in his own body—.

From such legends, Royal Seeds were worshipped as sacred beings. This eventually became a royal tradition, and today, the system prioritizes Royal Seeds as heirs to the throne.

And in the current Alveria Royal Family, there is only one Royal Seed.

The First Prince, Elvin Alveria.

As a child, Elvin was honest, bright, and laughed often. While receiving his education as a prince, he was loved by those around him and grew up as the future king without a shadow of a doubt. However, his life after reaching adulthood was far from happy.

As a Royal Seed, Elvin was given the duty of preserving the royal blood.

He took a primary consort through political arrangement and held multiple concubines to conceive. Both the consort and concubines were all male.

While the children born were treated with great care as royalty, Elvin himself was not permitted to raise them.

Even so, Elvin loved his children. But none of the sons born were Royal Seeds. Not the first, nor the second, nor the third. The "next Royal Seed" the family longed for never arrived.

Furthermore, Elvin lost children many times. Miscarriages. And stillbirths.

He was met with expectation every time he carried a new life, and his heart was chipped away every time he lost one. Yet, he was asked to conceive again, told "next time for sure." At the young age of 22, Elvin's heart had already reached its limit. The smile vanished from the young man who once laughed so much.

Though he behaved perfectly as a prince in public, in his private life, he showed almost no emotion, becoming a quiet and melancholy person.

And finally, an abnormality appeared in his body.

He became unable to conceive at all.

Doctors tried treatments, they tried to change his environment, and the royal family took every possible measure. Yet, Elvin's body would no longer accept new life.

The politicians grew desperate. Elvin's younger brothers were all typical males. None were Royal Seeds. If Elvin could not produce a Royal Seed, there was a possibility that the next generation of the royal family would have none.

The royal bloodline itself would end.

"Give birth to a Royal Seed." "For the sake of the family." "For the future of the country."

Subjected to these words continuously, Elvin finally closed his heart.

—Something had to be done. But the doctors, the royalty, and the politicians were all powerless.

There, the name of a certain person was brought up.

The only man Elvin truly trusted. Guest, a young man from a prestigious noble family who grew up with him and now serves as the Commander of the Alveria Royal Knights.

The only existence Elvin could treat not as a prince, but as just "Elvin."

The politicians said: "He might be able to do something for His Highness." "We don't know what needs to be done. But he is the only one the Prince opens his heart to."

And one day. A summons from the palace arrived for Guest, the Knight Commander.

The reason for the call was not for the prince's protection, nor diplomacy, nor war.

Save the broken prince.

That was the duty given to Guest.