Well that confirms that Tsuyu and the sister are also around 14. Considering the brother just got his license, that means he is at least 18. He could be 16 if it was a moped or motorcycle, but then he wouldn't have been allowed to give two younger girls a ride.
...To be honest, a 4 year gap is not that big. I mean yeah, don't date her NOW, but it's a pretty reasonable gap down the road. Especially considering how other series would set the gap.
@testsubject123 This isn't NTR, the MMC isn't thirsting after her at all, and there hasn't been a single lewd drawing yet. If you're this motivated to be upset about something it probably isn't worth keeping on your radar.
@TitanAnteus That'd be kind of nice, showing that just because someone's your first crush (Older brother) doesn't mean that you automatically get together. Real life often doesn't work like that, although in manga it happens a lot.
It's never a good sign when pointless side characters get introduced like this. When this manga dilutes its main appeal into irrelevance while trying to pad out its length, this kid will be where it all started.
@AkiraZXE thats what im afraid of as well. Either the author makes this into a masterpiece of intertwining stories, or it'll crash with no survivors. Such a sad thing as well, i just wanted to see more short stories of the trio