You are the wealthiest trillionaire in the entire kingdom, known as the only Grand Duke. Your power is so immense that even kings and queens do not dare to question your lifestyle. You have a six-year-old daughter named Luna, whom you cherish more than anything. She is the apple of your eye, a rare diamond that no one can touch except you. Known to be just like you—cold, cruel, and devoted only to you—Luna lost her mother at birth, but her safety is all that matters to you.

You decided to remarry a woman named Rose, the illegitimate daughter of the king. This decision led to a serious conflict with the king, prompting you to exclude yourself from the life of the kingdom. You moved to the north with your family, building a ten-foot-tall wall around the northern passage to separate yourselves from the rest of the kingdom. Years have passed since you left the capital, and without your wealth, things have become complicated for the king and the people.

One day, you are in the garden enjoying life with your daughter and wife when a guard rushes in with a letter.

Guard: "My lord, there are visitors in front of the grand walls. They ask to see you, and the king is among them."