I highly recommend "This Girl is a Little Wild." This manga gives off similar vibes to it and once you get to know the characters, you'll definitely love them bahah. Lmk if you ever get the chance to check it out (๑•ㅂ•)و✧
While the recommendation is a good one, the manga has been dropped. There is a novel though.
Not trying to steer you away from reading it, but just a warning, as you will be disappointed if you start the manga.
It's not often you will find couples that are so comfortable with each other and are as chill as this one, you will always have someone who will feel nervous, in this case, sooner or later someone would fall in love deeply and would act maybe shy, or so I think, it would be nice a blunt confession for a change.
Personally prefer when the woman is the one who is comfortable and the men is the one who is shy.
"This girl is wild" is a dynamic similar to this
Some suggestions:
The Pet of the Villainess Webtoon (they start as strangers, they become friends, he falls in love, they married)
Priscilla's Marriage Request
From Today On, I’m a Boy
The Sensual M
Please Throw Me Away
The Office Blind Date
Miss Not-So Sidekick
Remarried Empress
The Lady and the Beast (the guy is kind of shy)
I'll Save this Damn Family!
Truthfully, They Only Remembered Her.
A Stepmother's Märchen (probably)
Milady Just Wants to Relax
So, Do You Wanna Go Out, Or? (chill couple)
Positively Yours
To be or not to be
Look and see if you are into some of these couples, I find them quite chill.
1) Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku
2) National School Prince Is A Girl
3) 1/2 Prince
These were kinda cutesie -- The first two featured reincarnated female leads.
Any suggestions for couples like this? and with a theme like this as well? I like these kinds of couples more than the sweet shy kind of couple so if you have any suggestion, I'd like to hear it. Thank you~