Oh. People actually got triggered and went this hard on this topic? Um. Wow.
There are truly few pairings as iconic as K-Pop fans and fighting over which group gets to win the Suffering Olympics.
I wish I lived in this apparent Utopia where good things only happen for the hardest working and deserving people, while less success comes to everyone else.
Just remember that for every successful group in K-Pop, there are about 10 other groups that failed, regardless of how hard they worked or how much they "deserve" to succeed.
All that said....
Mamamoo is the most talented and hardest working girl group of all time and I will suffer no arguments to the contrary
Unlike literally all the other girl groups mentioned here, they started from the literal bottom of the ladder and climbed all the way to the freaking top, and they did that almost entirely with their talent, which is practically unheard of. And when they got to the top, they worked even harder, doing schedules every bit as busy as Twice while doing as many as four university festivals in a day.
But everyone else can argue over second place after Mamamoo!