For him, he left the realm of the Western Vampires and gave up the glory of being a king. Finally, when everything returned to dust, he turned into smoke and disappeared from the world, leaving only a bright red rose.
He was his childhood sweetheart, but when he faced the revenge of parricide, he left him and returned to the west. Hate or not, love or not, it's all in vain. In the end, when the facts came to light and he understood his feelings, he was no longer there.