@
kronix
I'm not sure how old you are, but as a 24 years old I'm not even sure I'd date a high school girl... so at 29? Pretty sure I wouldn't even consider it.
He'll soon be in his thirties while she'll still be a teenager. So even
if we consider the moral/legal questions a non-issue, he's a working adult and she's an immature high school girl, so they won't have the same understanding or priorities in life at all...
Edit: That being said it's a manga, so I guess I wouldn't mind if they end up together. Seeing the MC refuse at first shows he thinks with his head instead of his dick, so if they end up together when she gets a little bit older (18+ at least) and after they got to know each other well enough to break through the age gap, why not.