Tomo-chan wa Onna no ko! - Vol. 3 Ch. 252 - You Retort, You Lose

[MangaDex]

 

[Konrad2]

Thanks for the translation.

 

[trepano]

Scary

 

[Shigeruguy]

I AM SCARED HELP

 

[Shigeruguy]

STILL SCARED

 

[demonslender]

i don't know if she is actually stupid or hiddenly smart anymore.

 

[flannan]

i don't know if she is actually stupid or hiddenly smart anymore.

The mother seems to be reasonably smart, but saddled with a lot of mental problems. Most of them related to teenage pregnancy. And also with whatever makes Carol Carol (autism?).
Carol had a rather sheltered upbringing in addition to her genetics.

I guess this makes Carol the saner of the two.