Perfect Aim Marksman presents breathtaking vocals again in another attempt at defending the Throne. One mask has an impressive record, fighting for the top spot on the charts alongside IU and IVE. Which mask is behind the '90s mega hit, bringing the studio back to the good old days with a nostalgic performance? Another mask's bubbly charm brings an infectious smile to all viewers. Lastly, one mask has special ties to third-gen idols and is making a historical 10-year comeback.