Responses

lady yunhi has the blood of the first crimson king which is a descendant meaning they have the same blood while yuna is a reincarnation meaning she has the soul of the king hiryu not the blood so she will not be inflicted with the disease of the descendants of king hiryu and she will live her life as what her destiny brings her to be.
Since Lady Yunhi is a descendent of the first crimson dragon King, she is ill. So Princess Yona who is the new crimson king, she will have the same illness.
So what, everybody dies!... Except for Zeno. Now, I feel really depressed.