The REAL main character is the aunties. I think it goes like this.. the writer of this kdrama is an auntie who wants to write a kdrama. Of course she learnt, if you want to write a love drama, you have to express it as if the main character is yourself and all of the things you want to happen for you and something like that.
So she started writing based on that motivation. OF COURSE she started it with the scene of some aunties talking and joking because she's the aunties and she wants some attention to herself.
Then she imagined the female MC as her most FAVOURITE and ideal daughter that could ever be,, then the female MC personality comes up.
Also, all the other main character is just coming from an auntie who's creating her own ideal favourite children as the character personality based. The MC's bestie of course is some overachiever who wants to be a superhero because it's the typical auntie who really loves it when some child aiming to do more good deeds in this world. The character literally a random AUNTIE'S ideal children. ??

No need to stick around. With that kinda expression and motivation, this kdrama is a BIG disappointment and a huge flop.