← True Beauty 2020 - 2021

Cha Eun-woo Lee Su-ho, Theme Song Performance
Hwang In-yeop Han Seo-jun, Theme Song Performance
Lim Hyun-sung Comic Store Owner
Mun Ka-young Lim Ju-kyung
Kim Min-ki Lim Ju-young
Jung Jun-ho Lee Joo-hun
Seo Hye-won Se-mi's Friend
Kang Chan-hee Theme Song Performance
Kang Min-ah Choi Soo-a
Jeon Hye-won Park Sae-mi
Park Ho-san Lim Jae-pil
Lim Se-mi Lim Hee-kyung
Jang Hye-jin Hong Hyun-suk
Park You-na Kang Soo-jin
Oh Eui-sik Han Joon-woo
Kim Jung-hak Mr. Oh
Ahn Sang-woo Disciplinary Teacher
Yuju Theme Song Performance
Oh Yu-jin Joo Hye-min
Yeo Joo-ha Han Go-woon
Lee Sang-jin Ahn Hyun-gyu
Jang Jung-do Executive Producer
Koh Woo-ri Selena Lee
Kim Byung-choon Vice-principal
Yoon Seo-ah Young Im Hee-kyung
김민서 Theme Song Performance
Car, the garden Theme Song Performance
Lee Si-eun Writer
Lee Woo-je Kim Cho-rong
Lee Il-jun Yoo Tae-hoon
Ha Sung-woon Theme Song Performance
Oh Chae-eun Woo-hyeon's Girlfriend
Park Se-jun Sound
Kim Young-kyu Executive Producer
Kim Ryul-Ha Kim Ga-young
Kim Hyo-jin Theme Song Performance
Kim So-bin Classmate
Yaongyi Original Story
Hyesun Cho Theme Song Performance
Park Sung-Jin Yoo Gang-hyeon
Kim Sang-hyub Director
Kim Hyun-Ji Kim Si-hyun
Han Yi Young Ha Ji-young
Ahn So-Rim Lee Ye-rim
Lee Joo-Ahn Choi Man-shik