After Exchanging with Her, I Succeeded in My Revenge

My younger sister, Lily Moran, in her quest to marry into a wealthy family, was willing to sacrifice herself for the CEO.

The CEO's beloved, who was gravely ill, needed blood, liver, and eventually even a kidney. Lily donated all of these to her.

As an emergency doctor, I saved Lily countless times, but due to leaving scars from her injuries, she ended up killing me in a fit of rage.

When I opened my eyes again, I found myself back on the day Lily met the CEO.

Excitedly, Lily announced to the whole family, "Mr. Zuniga asked for my contact information. He's interested in me."