@itsnottme i corrected it less than 5 minutes after i posted it to mental age
also for argument's sake
if his brain wasnt necessarily developed how would he retain these memories
how would his cognitive abilities work?
at least when looking at things like Volcanic Age one of the earlier things the MC did was to write down as much as he could remember from the future
as his younger body's brain couldn't retain the information (given this book hasnt been referenced in over 100 chapters but hey)
welp at the end of the day we're talking about a guy who's retained his past life's experiences perhaps 29 years-ish
-i cant remember things from when i was 5 so im assuming the average subhuman is the same
fawning irrationally over a child to the point he cant even see straight
when not even his advisor an isolated bumpkin with seemingly no prior experience with girls his age is this bad...
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what can i say it'd have been better to have a kid of 8-10 years get isekai'd by a bus