My Sister Was Forced to Jump from a Building, So I Became the Supreme Evil Healer

I married into a wealthy family to save my younger sister.

But when she fell gravely ill, I was told her medicine couldn't be obtained for another year because it had to be booked in advance?

It turned out my fiancée's suitor was behind it.

In my despair,

I awakened a mysterious healing art

and crushed those petty villains!