And where is Mira in this equation? She was given a chance but she chose the same path.
His parents didn't remember their other lives. He has no idea who died after his death. Why is it related to his death anyway? Was his death different?
He thinks about the day he died. It was an alley, a town that was a little away from the village where Mira's home was. What was special about Mira's home? What did she say about the cave?
It was the place where she hid when her mother was chasing her to kill her.
Mira's mother had raised her like a boy. She had no idea that Mira was a girl. Is that what twisted Mira? Was it her father, Daniel Nagasaki? Mira's twin brother was killed in infancy. It turned out that it was her father who killed real Yuki Kirishima.
That's all he learned about her after his rebirth.