"A genius mathematician with a hidden past and a needy student given up on math."
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 genius mathematician with a hidden past and a needy student given up on math."
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.
