In the first round, the two singers collaborated to sing HI SUHYUN's "I'm Different". The two worked together effortlessly which made the whole panel look on with huge smiles on their faces. Unfortunately for 'Flower Girl', however, she wasn't able to get past the first round and lost the match.
Afterward, it came time to reveal the true identity behind the mask. Once she did, many were surprised to see none other than Kyulkyung (Pinky). It appears the only person who had a clear idea was Weki Meki's Choi Yoo Jung, who was in IOI with Kyulkyung previously.