i-dle's Soyeon appeared on JTBC's 'Newsroom' on September 5 and revealed that it takes at least a month to complete one song, and that 'TOMBOY' took about a year after being revised dozens of times. She explained that when creating a song for another singer, he first studies that person's life, image, and charm. Soyeon said that she gets inspiration from movies, dramas, and animations, and that she endures and passes through slumps and anxiety about losing her talent. I also introduced the habit of repeating ‘I am happy’ three times every morning.