Long Han — the Emperor's youngest son and the Empress's only child, which makes him the lawful heir to the throne despite all four of his brothers being older than him. He is dying of Hanahaki — a disease born of unrequited love for the daughter of General Wei Zhong — and his silence is dictated not by weakness, but by his unwillingness to cause pain to his brother, to her, or to anyone else for the sake of his own salvation.