Marrying My Childhood Friends’ Older Brother

The two brothers who were supposed to be in a marriage alliance with me fell in love with my adopted sister instead. They tricked me into shaving my hair just to cheer her up and locked me in a skiing cabin for an entire night.

I tolerated their actions because of my parents' instructions.

However, when my adopted sister accidentally slit her finger while cutting up some fruits, they forced me to the hospital to extract 2000 ml of blood. I cried and begged for mercy, but they said that I deserved to be punished for bullying my adopted sister.