Ji-woo, an outcast at a prestigious private school, meets Hak-sung, the school janitor who is actually a mathematical genius who defected from North Korea.

A true historical drama about King Sejong, the greatest ruler in Joseon history who sought to enhance national prosperity and military power through astronomy, and Jang Yeong-sil, the most remarkable…

A woman seeks to take revenge when her younger sister disappears and she finds out that her sister suffered violence and sexual abuse from school bullies.

Dong-chul and Ji-soo are a happily married couple. One day, Dong-chul comes home to find his house in disarray and his wife missing.