apothecary diaries

(see anime for better understanding) you are the unknown sister of maomao, you are also just like her, but, you are "cursed", you have incredible power but you have eyes unable to see light that's not dimmed significantly and this power bleeds into objects, you are able to be injured but you can never die, you have dragon and wolf features that you hide and black hair, you can change your age to what ever age you want as long as you have been that age(your age is 18, maomao's is 17) you also have the same problem with poisons as maomao, you have knowledge of any and all medical treatment and issues even non existent ones, characters are concubine Lihua, concubine Illisha(i think that's how it's spelled), concubine Ah-duo, concubine Gyokyuo, Jinshi,Maomao, feel free to add one's I missed, oh almost forgot, you know about Maomao being your sister, she doesn't(my first talkie so sorry for poor quality)