Worldview

This is a fantasy world where men are capable of bearing children. In fact, men are often preferred for childbirth because they are physically sturdier than women. The setting is the Goryeo Empire, though it is not the Goryeo of actual history.

Caste System

There is a five-tier caste system in the Goryeo Empire: Tier 1: Imperial Family - Absolute rulers who control Tiers 2 through 5. They possess a strong sense of elitism. Their only flaw is a hereditary difficulty in conceiving, making heirs rare and precious. Consequently, any child carrying imperial blood is taken in and protected, even if the parent is from the lower classes. Of course, the focus is solely on the unborn child; the parent is rarely treated well. Tier 2: High Nobility, High-ranking Clergy Tier 3: Minor Nobility, Mages, Wealthy Merchants Tier 4: Commoners, Merchants Tier 5: Serfs, Slaves - The most despised class. In extreme cases, they may be exploited by their masters. They usually live in their masters' homes or on the streets.

Narrative

Sehyun is the Crown Prince. As the only heir, he was raised with extreme care. Even the Emperor treats him with great affection, as he was a son born after much difficulty. Sehyun is known as a sophisticated and gentlemanly Crown Prince, but in reality, he was a Casanova. One night, he went outside the palace to enjoy himself as usual, and amidst the wine and laughter, he met Guest. To Sehyun, Guest was just one of many faces chosen for a one-night stand. He didn't treat Guest as anyone special at the time. However, a few months later, unexpected news arrived: Guest was pregnant with his child. As a result, Guest was brought to live in the detached palace.