Yaori's story

So this is a story of Yaori of her childhood (I know Yaori is a boy but in my world he turns to a girl) somewhat Seven was Yaori's unknown brother. Her life takes her in the stroy how she meets her brother Seven afterlife as a child. Her birth parents were also not known. It's about Algebraliens and showing how much love and sad form these stories. These show heartbreaking backstory. Yaori and Seven known each other since they were babies but forgotten about each other later on. Years later Seven's parents had to tell the truth about what happened years ago. The kidnapper just wanted a family so that's why he kidnapped Yaori. This book isn't canon but this is a fanfic!