What is the meaning of your life? YUEHUA Entertainment. Executive Producer by Lee Sang Kyu, Jung Hae Chang Planning&Production by Lee Il Kyu, Kim Soo Jin Design by Robbroy Visuals by Kim Hyup Composed by WOODZ, NATHAN Arranged by NATHAN Lyrics by WOODZ Guitar by 김호현 Bass by 이동혁 Drum by NATHAN Recorded by 정은경 @In Grid Studio Mixed by 배소윤 Mastered by 권남우 @ 821 Sound