This world without strings, it's for me to Full Combo

Of course, it's not really for me though ㅋㅋㅋㅋㅋㅋㅋㅋ This song... I'm playing it, but too many customers are coming in I didn't even make a mistake, but how many times did I have to retry? Sigh... This is why it's hard to play games while working part-time