Complex sentence: This is the story of his first life in which his name is Asaha Douji he was named after his mother, Asano Ha, who was killed by humans for being a Yokai who spoke with demons.
Split into simpler sentences: This is the story of his first life in which his name is Asaha Douji. He was named after his mother, Asano Ha, who was killed by humans for being a Yokai who spoke with demons.