The plot largely revolves around a girl, named Mai and her father and there journey together. Mai, herself is way mature for her age, while the father acts as a child. The setting pretty much revolves around them and their colleagues who also add their little bits to enhance the comic effect of certain jokes.
The interactions between them are wholesome, funny and sometimes stupid.
The father is a hilarious man, his antics are funny and always getting on the nerves of the girl. He acts stupidly most of the times but due to certain circumstances he hides his seriousness and wears a joker mask.

One of the best things about the manga were that even though a lot of comedy routine was using violence (the girl punching her dad), it was handled in a super funny, justifiable way and never felt repetitive. Also, the comedy was clean, no lolicon jokes or other deprave tropes for comedic gags were used, which made it a pretty simple, family friendly read.
The art isn't any good even for its time but the content easily makes up for that and as it's more of a 4-koma gag it doesn't really need require a good art.
Mai is involved in her father's work life and her father gets involved in Mai's school life and hilarious situations arise. The way the office staff acts towards Mai, with reverence and how all her friends make great friend with her dad is super funny.
The author took a break in between and there is a difference in her style that can be felt, the quality dips a little but it happens quite late and doesn't hamper the experience. The difference was visible to me as I binged it but could very well not be felt by casual readers.

There is an underlying subplot which is slice of life-ish, heartwarming and brings out the wholesomeness while the gags keep you entertained and hooked to the manga. The daughter-father duo is pretty supportive and even the gags will show you how much the care for each other. There are some heavy moments later on towards the climax of the manga and they're done well. The plot is not super heavy and thus there's not much that one will remember, hence the reread value is high for this.

I completed the manga in 2-3 days and wouldn't feel shy in saying that it's one of the very few manga which were funny yet cute. This is a hidden gem which needs more mentions. The authors other works are also decently funny and may be looked into.
I have an aversion to 4-koma as they've a lot of text and a mediocre art but this one made me change my opinion, how much of good content I was missing.

There's supposedly a little sequel to this manga which is about when the girl grows up.

Summing it up, it's simple, it's cute and it'll definitely bring a smile to your face.