Credits adapted from album liner notes ;Musicians •
Lee Hyori – vocals, chorus •
Yoon Il-sang – acoustic/electronic piano, chorus • Jo Gyu-man – acoustic/electronic piano, chorus • John+K – acoustic/electronic piano • Mad SoulChild – acoustic/electronic piano • Kim Ji-woong – acoustic/electronic piano • Lee Geun-hyung – acoustic guitar, electric guitar • Hong Jun-ho – acoustic guitar, electric guitar • Ryu Hyeong-seop – acoustic guitar, electric guitar • Ahn Jung-hoon – acoustic guitar, electric guitar, harmonica • Huh Jae-hyuk – bass guitar • Lee Seon-ah and seven others –
first violin • Lee Jang-woo and seven others –
second violin • Ahn Ji-woo, Kim Hye-sun, Park Geun-suk, Oh Hye-min, Ha Ji-hyun – viola • Hong Mi-jeong, Um Jeong-hee, Ko Hyeon-jeong – cello • Kim Da-young, Kim Hyuna, Lee Ji-eun, Soul-trip, Kim Hyo-su – chorus • Choi Jae-hwa (DJ Rex) – scratch ;Production and design • Lee Hyori – production • Ahn Jung-hoon – production • Lee Ho-yeon (
DSP Entertainment) – executive producer • Kim Do-hyeon and eight others – computer programming • Park In-young, Kim Ji-woong – string arrangement • Jeong Moo-kyung and nine others – recording • Im Chang-deok, Ko Seung-wook, Park Byeong-jun, Han Jong-jin, Jo Jun-seong, Jeong Doo-seok – mixing • Choi Hyo-young (Sonic Korea) – mastering • Gugram Design – design, artwork • Yoon Woo-taek – photography • Jeong Bo-yoon, Jang Hyo-jin, Park Mi-ra – stylist • Myungjin Art – printing == Charts ==