My First Love

A shy math teacher time-travels back to high school to win his lost love, competing with his younger self for her heart.

Comedy Mystery Sci-Fi & Fantasy

Lee Jung-shin

(Kang Shin-Woo)

Seo Ji-hoon

(Young Kang Shin-Woo)

Lee Yul-eum

(Han Ji-Soo)

Lee Tae-seon

(Shin Joo-Hwan)

Cho Lee-hyeon

(Baek Na-Hee)

Min Do-hee

(Jang So-Ra)

Lee Joo-hyung

(Choo Geun-Deok)

Kim Sun-young

(Shin-Woo's mother)

Park Han-sol

(Kim Yun-jeong)

Ko Kyu-pil

(Mozart student's Head Teacher)

Kim Min-seok

(Kim Min Seok)