Fell in love with this Korean song

My daughter loves to watch "Mator tall tales" on Netflix. I watch it too sitting next to her and I love it. Anyway, one thing that caught my attention is the song that comes at the end of it. First I thought it was a Japanese song and later realized it was Korean and the woman's voice pretty much haunted me until I went and found it on youtube. Looks like whoever posted this video had the same love for it. Here is the song in case you'd like to listen to: