Arranged Marriage:Possessive little wife

Saving an unknown man caused him to lost half his life, in return the unknown man promised him a marriage to care for his only living family. The conspiracy of a royal prestigious family was way over a small town capacity. But she is her fathers daughter so she won't give up after all it was saving this family old man that caused her father his life so technically they owe her. She won't let any one step on her .....