Park Dong-hun

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.

It is the year 1965. Yu-jeong and Hak-song reaches the marriageable ages. They have the 4th date at the ostentatious Kukje Jungang Cafeteria and feel awkward to talk to each other. Now ...

Every episode has one dialogue with two characters in one place. The six dialogues are for beginners who should still learn (?) from the realities of how we rule out people around us ...