突然间有那样的时候 [Credit] Composed by 권진아 Lyrics by 권진아 Arranged by philtre Guitar by 권진아 Keyboard by philtre Synthesizer by philtre Chorus by 권진아, Gaeko Recorded by Pinky at Amoeba Culture Studio, Gaeko at Gaejaksil Mixed by 지승남 at Antenna Studio (assisted by 이소윤) Mastered by 권남우 at 821 Sound Mastering