TS Entertainment stated, "The title track, 'I Do', is a lively and warm song and is also reminiscent of carols, which will match well with the coming winter season."
Regarding their comeback in 8 months, the ladies of SECRET shared, "We are very joyful at the thought of being able to promote as 4 members in a while once again. All of the members are excited to share SECRET's own color through the winter album. We hope that many people will listen to SECRET's new song and have a warm and happy winter."
Although SECRET can be both sexy and cute, it's said they'll be going with their characteristic bright and cute concept for this winter song. Stay tuned for more details regarding SECRET's comeback!