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Synopsis
"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.
Drama
High SchoolMathematicsMathematicianPrivate SchoolPrivate LessonsJanitorHigh School StudentNorth Korean DefectorInter-korean RelationsNational Intelligence Service (nis)
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