An old friend who had been in exile for ten years returned to the palace.
His behavior was frivolous and undisciplined, and everyone thought he was just coming back to bow to the new king. No one knew that a net that had been buried for ten years was quietly tightening in King's Landing with his return.
Ash is the illegitimate son of the late king that no one knows about in the Red Castle, and he is also a servant that the king keeps around and humiliates.
He tested poisons for the king every day, practiced swordsmanship with the nobles, and learned to live in humiliation.
Until that day, he chose to follow that seemingly unattractive man away.
He thought he had just changed his master, but he didn't know that from that moment on, he had already walked into a conspiracy that could subvert the kingdom.
Concept: Under the throne is the struggle for power and the entanglement of fate. There is no winner in the game of love.