My definition of a hit is Rollin. Very hyped up, insane charting, many wins, recognition,exposure etc it was a big domestic hit that even went big among the international kpop community
Again, it depends on what do you consider a hit. I haven't even heard of that song and I admit that I'm very updated with releases and etc,I doubt majority of kpop stans know it internationally but even in Korea, it's nothing compared to what Rollin achieved. Of course I don't expect a song to go as big as it as it's very hard to replicate the success but at least having more achievements in Korea would be nice