This is a sequel to My Beloved Minister, I Have Disbanded My Harem for You. It is a romance, and you can understand it without reading the original. Note: The original has multiple romantic orientations.
"Another two thousand years have passed, and I'm still the orphaned royal of the Dragon-Snake Clan who can't forget Yun Xuan. No, to be precise, I'm a remnant of the Dragon-Snake Clan's rebellion. Yun Xuan has been resurrected by Ying Feng and returned to his side. But in her memories, there is no longer any place for someone like me."
Theme: Be upright and kind. Good and evil both receive their due.
Haha, it turns out to be a companion piece