By Dramabeans
Longing Heart
Min Yeon-hong
Park Ga-yeon
10
45 minutes
OCN
South Korea
Korean
Source: Wikipedia
Kim Yun-jeong
Young Kang Shin-woo (18 years old)
Baek Na-hee
Han Ji-soo, Shin-woo's first love, a pretty and smart student who hides an inner pain from childhood.
Shin Joo-hwan
Jang So-ra
Shin-woo's mother
Kang Shin-woo (28 years old), a high school mathematics teacher who, by an accidental opportunity, returns to ten years in the past and meets his younger self.