Suga’s 싸이하누월/Ssaihanuwar/상관없어/It Doesn’t Matter …. so many titles!!!
He mentions this song in lyrics of his recent mixtape, August D.
The reason that the song is called “Ssaihanuwar” is because of the background vocal that says “Ssaihanuwar” repeatedly at the beginning, from a song by An Sook-Sun (안 숙선) who does a type of traditional Korean music/storytelling. I couldn’t find the original song…but this is one of her performances of another song.
He seems kinda embarrassed about this song now, but I kind of like it.