청담국제고등학교

2025 – via Naver. Park, Seo-hyun (November 23, 2023). 이은샘X예리X이종혁X유정후 '청담국제고등학교' 캐스팅..신예들 출격(공식) [Lee Eun-sam X Ye-ri X Lee Jong-hyuk X Yoo Jung-hoo Casting

February 7, 2021. Ha, Su-jeong (November 23, 2022). "레드벨벳 예리·이은샘→이종혁, '청담국제고등학교' 출연 확정 [공식]" [Red Velvet Yeri·Lee Eunsam→Lee Jonghyuk confirmed to appear

January 31, 2022. Ha, Su-jeong (November 23, 2022). "레드벨벳 예리·이은샘→이종혁, '청담국제고등학교' 출연 확정 [공식]" [Red Velvet Yeri·Lee Eunsam→Lee Jonghyuk confirmed to appear