@Ita they aren’t actually mentally older though as they lived their character’s lives without memories of earth prior to the story starting. A 5 year old who transmigrates into the body of a 5 year old and gets that body’s memories is still 5 years old mentally despite having lived those 5 years twice.
So a 17 year old all of a sudden getting the memories of a 13 year old (I havent read this series in a while I can’t remember what age their characters were) isn’t all of a sudden a 30 year old mentally, they just have twice as much experience at being a 13 year old
Spoiler!
thick thighs + nice a** + big di** + nice ti** + twisted personality = perfection