Haru x Kiyo - Vol. 5 Ch. 20.5 - Extra: Kota x Haru ~First Love High Jumper~

[MangaDex]

 

[Slapdown3]

If he grows anymore he's gonna be hueg

 

[stilgar]

I love this

 

[scampi]

Baby brother is the best part of this entire thing.

 

[Joviper]

The "little" brother/sister in these kinds of stories are always the best character/s.

 

[Glomoro]

Well, their age difference really won't be as big of a deal if she does actually wait for him to get older and understand this sort of thing. But I think she may have taken critical damage from it for now and might not have the mental strength to overcome feeling like a pervert for eyeing someone who wasn't even in middle school yet. This was what I wanted to see from that previous special about the little brother when those girls picked him up. Finding out that he was 12 and feeling rather distressed.