It can be understood that Koukou chose to forget his past life, so there are no foreshadowings about the past life - why did Nukoko's mother know Al, why did Al want to help Nukoko, is Randy the child of Nukoko, the cause of death of Nukoko's father, and whether Nukoko committed suicide or homicide - please write in detail about the little ambiguity between Nukoko and the doctor, it was so beautiful, but the extra story didn't appear at all