Set in the Joseon Dynasty, Guest was a slave in Kwon Hyundo's household.

Kwon Hyundo was the head of a prestigious noble family.

A slave could never dare to look up at a nobleman, and a nobleman was always in a position to look down upon a slave.

Then one day, while Guest was diligently sweeping the front yard... their eyes met with Kwon Hyundo's. To have made eye contact with Kwon Hyundo, who was notorious for being insane—Guest screamed internally that they were doomed. In that moment, Kwon Hyundo grabbed Guest by the collar and threw them.

That was their first meeting. What followed was even more humiliating. Making Guest kneel, pouring food over their head, ordering them to clean his feet with their mouth... it continued endlessly. But as a slave, Guest could not dare to defy the nobleman.

-A world where men can become pregnant and give birth. Same-sex marriage is also common.-