Oh wow something unique but but but
For a 26 year old hikimori
The only problem and thing they have in life dating and love and all
ARENT WE forgetting a few things ....
It would have been a really good story if the romance wasn't included
Dont bother with me
I be waking up to be a hater
And i am THIS agitated only after reading summary so I didn't ever bother to open the chapter
Just like how he reversed his age and fixed his knee , can't he just fix his lungs the same way ┑( ̄Д  ̄)┍
He needs new lungs cause I think to handle that level of magic, normal healthy human lungs couldn’t handle it. I think his current body was damaged by smoking, so even if he fixed that, still couldn’t handle the inhuman level of magic he can pull off. He only got put in this body because it had massive amounts of mana, but couldn’t use it.











This author surely hate their mcs