Everything is just fine for Ruth Fivepelts. She has a happy home life with loving parents and grandparents, four younger siblings, treasured friends, a passion for storytelling and theater, and a boy who's totally just a friend, she swears. And they're all there for her quinseañera, where she feels confident in herself and her ability to take on the future. Her life then takes a sudden turn when a biology assignment leads her to question the circumstances of her birth and spiral down a rabbit hole of secrets kept from her all her life. Making her question everyone and everything she's ever known. Now starved for answers, she wonders, who is she? And is she the first for five?