The Yandere Prince Becomes a Confidant

[No heroine, fantasy, ancient costume] He was poisoned in his mother's womb and was told that he would not survive until he was three years old. His parents searched all over the world for famous doctors to save his life, but they didn't expect that he survived, but he was still sick and weak. There is still no solution to the problem. He is also mysterious and mysterious. Let's see how to decipher it... This king: I am too weak to travel around the world with you. Someone: It doesn't matter, you can't travel around the world with me, I can be that caged bird with you. I don't know when this king was weak... Ahem, he left. Someone: It doesn't matter, in heaven and on earth, in the royal fountain of hell, I will accompany you, life and death depend on each other...