Our Bertia is so dumb and airheaded that I found her so adorable, and, Cecil is so cunning and composed that I found him so attractive.
I’m forgetting what other story is similar to this. Though the fl isn’t dumb, but she is on the oblivious side
She is airheaded and naive, hardworking and so lovely. You cannot take her as cunning one.
Yeahh, and that's exactly why they fit together so well. They're just each other's opposite, one can do whatever she wants without a care, and the other is always calculating his moves. They fit like a puzzle and we all love it.
this maybe? https://www.mangago.zone/read-manga/even_though_she_is_a_weak_max_daughter_she_has_taken_a_bet_from_a_shrewd_fianc_e/
That’s the one
Our Bertia is so dumb and airheaded that I found her so adorable, and, Cecil is so cunning and composed that I found him so attractive.