Why Is He Still Single?

A bit stubborn, quirky, immature, but ambitious MLS who loves to boast~~~
While WIHSS is more of a Mr. Bean-style, LGMT is the second chance at life drama.

The MLs have a similar vibe, although they are quite opposite when it comes to social relationships. Both are quirky people who have a light character, seldom serious, particular beings, who love food!

MLs hate others entering their personal space/room.
Doctor Fls, who help MLs understand their emotions better

Quirky Tsundere single MLs (a bit on the older side), who are particular about their food.
Good at heart, want to help others, but fail when they open their mouths

A boss who is completely uninterested in others and has no consideration for them.
A secretary(in juggles its the fl.. unlike in WIHSS where its the male assistant) with a passive and obedient personality

Kind leads who barge into the lives of tsundere, ambitious leads—ml/fl who are good at heart but completely fail to express their feelings properly! Thus ruining it the moment they open their mouths.

Neighbours issues..
Getting dragged along into the life problems of your neighbour. Helping around daily life.

both shows portray matured adult slow burn relationships in urban settings.
in both shows, the leads are doing well in their respective professions and the MLs are respectful of the FL--of course in WIHST the ML has a menace-mouth, so whatever he says comes out mean but the character arc shows how he improves with time, especially with the FL's presence in his life, who appears the more matured, warm, understanding of the two partners.
in FITYMI, the ML comes across as relatively more more matured, warm, understanding of the FL, though in this show there is no pretense of entering a relationship--they casually date and flirt--before realising their relation is more than that.
In both cases,the leads start off bickering and then graduate to friendships (solid ones) that form the basis of their relationships.
ALso, MLs in both shows gorgeous and FLs beautiful.

MKDO is the sequel of the original Japanese series:He who cant marry, that this cdrama is a remake of!
Same story extension

The protagonist in both dramas is an architect in his 40's who has no future plans of marriage but finds the one woman who will change his perception on life.

Quirky male leads with clumsy social skills, strict personal routines, zero plans to marry, and a deep love for their home and personal space.

A lot of C-dramas with slightly older leads who are constantly pushed by their families to get married through endless blind dates, while the younger characters in the story are busy figuring out their place in society, juggling rent, lifestyle costs, and everyday life on an ordinary salary.

Similar Shanghai aesthetics
Similar cozy vibe
Also the story centered around urban life in Shanghai