
The cast of SKY CASTLE successfully captures attention with their amazing acting. Actor Lee Hyun Jin, who plays Jo Seonsaengnim (Teacher Jo), has also become a topic of conversation. This is because the star who portrays Kim Joo Young's right-hand man, the elite teacher, always appears serious in the drama. However, when peeking into his Instagram, fans will see a completely different side. Lee Hyun Jin is actually a friendly and smiley person.