Chapter 143: Good Deed Credit

Doctor Lou knit his brows in thought, "Hmm...longevity? Perhaps, among other things...It was Dong royalty's closely guarded secret passed down through generations to the succeeding heirs. Although I do know how - But it's not me, I didn't do it! Really!" Doctor Lou quickly defended when the Emperor narrowed his eyes at him, "I would tell you if I did...I like to get credit for my good work. I doubt your doctors could have figured out the Seyu, very few have knowledge of it. You're very lucky to have me. You should be happy~"

The Emperor ignored Doctor Lou's ramblings and frowned in thought.