Shin Su-hyun

Shin Su-hyun is a South Korean actress and model who first chased an idol dream before finding her true home in acting. She is known as Lee Ji-woo, the loyal and tough student fighter in the action school drama Study Group (2025), and as Cha So-yeon in Duty After School (2023). Her fresh, honest style is winning her many young fans.

Shin Su-hyun is 163 cm (5 ft 4 in) tall.

Early life

Shin Su-hyun was born on February 27, 1996, in Ulsan, South Korea. She trained as a singer and appeared as a contestant on the idol survival shows MIXNINE in 2017 and Produce 48 in 2018. The shows did not give her a debut, but they taught her stage presence and brought her first public attention.

Career and breakthrough

Shin Su-hyun turned to acting and modelling, taking roles in Woman of 9.9 Billion (2019) and At a Distance, Spring Is Green (2021). Her breakthrough came with Duty After School (2023), the hit sci-fi school drama where students fight alien creatures, and her brave Cha So-yeon became a fan favourite.

Popular roles

In Study Group (2025), Shin Su-hyun plays Lee Ji-woo, a strong student who protects her friends in a school ruled by fights. The webtoon-based drama became a word-of-mouth hit, and her action scenes won wide praise. She also appeared in The Story of Park's Marriage Contract (2023) and My Sweet Mobster (2024).

Recent work and why fans love her

Shin Su-hyun joined the superhero drama Cashero (2025) as Lee Su-eun and the family series Our Golden Days (2025). Fans love her fighter spirit, in her roles and in real life: she never gave up after her idol dream ended. Her story inspires everyone who starts again.