For those who are curious this condition is called superfetation
Well ... When she is being very boring, I call her big forehead and Sakura always says superiorly that she is older than me ... She was born 2 months before me .... If it weren't for her always talking the exact date March 23, I would never remember that ... By the way, I was born on May 25...
I am a man ... So why was I reborn as Sakura's little sister?!?!?! ...