Under the Blood Moon, I Tore Up Our Bond.

GoodShort synopsis

One month before our Blood Bond Ceremony, my fiancé decided to have a child with his childhood sweetheart to repay a life debt. When I received the pregnancy report bearing both families' blood seals, I realized he had never asked for my permission—he was only informing me. So I tore up our bond and walked away. Two years later, he finally discovered that I was the one who had saved his life. But by then, I was already standing beside another man.