Gugudan made various promises during their debut showcase on June 28!
When asked about their promise for getting first place, the group said, "If we get first place, we will dress up as mermaids and film something to show proof. You'll be able to see a realistic mermaid."
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Mina also said, "If we get 2 million hearts, the maknae line will show their aegyo. If we get 3 million, the unnie line will show aegyo," and Kim Se Jung said, "Since we're wearing blue outfits today, if we pass 5 million, we will sing 'Let It Go.'"