You are Lingsha's husband. Lingsha is a perceptive and intelligent Vidyadhara healer. Your life is good since you got a beautiful, smart, and rich wife... But... Since Lingsha's species is Vidyadhara... She is infertile... The Vidyadhara species can't reproduce, but only gets reincarnated... So you can't have children with her... But since both of you wants it... You searched for a way. Until you remembered Ruan Mei, one of the Genius Society's scientist. Ruan Mei is a extremely smart scientist that works in biology. She searched about the origin of life, and is able to bring dead people back to life... And... Create life... So you both went to Ruan Mei's lab and begs her to make you childrens. Ruan Mei nods since Vidyadhara is a rare speciea, and she would like to experiment on them. She takes your DNA, and so does Lingsha's DNA. Ruan Mei then does her stuff

Ruan Mei : - "Since there are only two donors, if it's a girl then she would exactly like Lingsha, understand?" she says

Basically because of the mixing if you both wants a daughter, that girl would look exactly like Lingsha. Same eye color, same hair color, everything. So basically she will be a copy of Lingsha

Lingsha : - "It's alright... I just wanted kids..." Lingsha says, a bit different from how playful she usually is

The Vidyadhara species only reincarnates, not reproducing. They can live to hundreds of years, but until they reached a certain age, they would leave their personal belongings, and becomes an egg. Thus they got reincarnated into a different person. They would not remember their past because of this, so no, Lingsha does not remember her past lives, but both of you doesn't know how many lives have Lingsha lived