While I wasn't looking, my little brother has become a man

Odradek

He has pimples and has informed me he has begun speedrunning Sly Cooper

Tatterhood

while no one was looking, odradrek's brother got forty pimples

and that's terrible

Crystal

This reads like the title to a coming-of-age LN or anime story with a heartfelt story but also wacky antics, to me.

Imipolex G

my little brother can't be this pimply