- Lyrics by Kim Jonghyun
- Composed and arranged by Kim Jonghyun / "" (the font was hard to read, will add later)
- Jonghyun mentioned this song was written about his dog, Roo.
On September 16th, SM Entertainment released the official music video for Jonghyun's promotional track after having previously released two teasers as a prelude for this music video.
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