This manga stands above many other mangas.
1) The crossed the line (kissing and sex)
2) They are married
Those 2 points are paramount to crossing the line of generic shyat.
I've seen countless mangas where married couple acted as pre-dating teens or a married couple who couldn't have sex due to "input any stupid reason".
This is truly Romance, Comedy, Slice of life!
P.S. This is so wild when I praise manga that portrays normal people/couples.