18th birthday

A girl named Melissa was rejected by her mate who is an Alpha. She hates her life with the pack so she runs away together with her friend who is also an Omega as her Daniel. She joins the Bloodmoon pack and returns to her pack after 2 years to help them fight off the rogues. What happens if her mate the alpha asks for another chance? Will she give him that chance? Or will she find a second mate?