cute gap moe
and it shouldn't be an issue but i feel like some ppl would try to cover/heal a scar (altho with the 'naughty child' line other than him fooling around with friends as a kid, if that line implies he got 'punished' i guess his parents wouldn't let him try to make his scar look better/faded)
aw the self intro, i'd hope the teacher would at least be understanding, i wonder if there's any auto bio stories of teachers that got adapted into manga where they 'observe' students ending out diff than their first impressions (privacy aside that seems like it could be interesting to see in a manga, if like the person who made Famires ikou/hoshi onna did)
aww the jump