Ruth the Moabite had such love for Naomi that she was willing to do anything to help her. There was only one thing keeping things from going as Naomi had planned, another redeemer. However, Boaz had a meeting with him and he couldn't redeem her, so now it was up to him. Boaz then purchased all the properties belonging to Naomi's deceased husband and sons, which included Ruth! Boaz took Ruth to be his wife. The stories in the Bible are not told to us as mere entertainment, they have a purpose. Though the story of Ruth is full of wonderful lessons, the main purpose of God including it in His scriptures is to show the genealogy of, and the steps it took to bring Jesus to earth in the flesh. Ruth and Boaz had a son, Obed, which means, a servant. Obed was the father of Jesse, who was the father of King David! This common family is the family of kings, which culminated with our King and Savior, Jesus, the restorer of life!
Then the women said to Naomi, "Blessed be the LORD, who has not left you this day without a redeemer, and may his name be renowned in Israel! He shall be to you a restorer of life and a nourisher of your old age, for your daughter-in-law who loves you, who is more to you than seven sons, has given birth to him. Ruth 4:14-15
You can read this story for yourself in Ruth. This portion comes from Ruth 4:1-22