Plot: Seung Yoo and Ye Rin prepare in earnest for the Math Olympics. Jung Ah and Min Jun teach Ye Rin the means to win, and Yoon Su finds out about the corruption in the competition
Cast
Lim Soo-jungJi Yoon-sooLim Soo-jung was 42 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Wed, Jul 11 1979
Lee Do-hyunBaek Seung-yooLee Do-hyun was 26 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Tue, Apr 11 1995
Jin KyungNoh Jung-ahJin Kyung was 49 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Mon, Mar 27 1972
Woo Da-viSung Ye-rinWoo Da-vi was 22 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Wed, Oct 13 1999
Jang Hyun-sungSung Min-joonJang Hyun-sung was 51 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Fri, Jul 17 1970
Byeon Jung-suYoo Hye-miByeon Jung-su was 47 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Mon, Apr 15 1974
Choi Dae-hoonRyu Sung-jaeChoi Dae-hoon was 41 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Sun, Nov 16 1980
Baek Ji-wonMin Hee-seungBaek Ji-won was 48 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Mon, Apr 30 1973
Kim Ho-jinBaek Min-shikKim Ho-jin was 51 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Tue, May 05 1970
Jeon Guk-hyangShin Kyung-inJeon Guk-hyang was 58 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Fri, Jul 26 1963
Oh Hye-wonNoh Yeon-wooOh Hye-won was 35 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Tue, Feb 04 1986
Lee Kang-jiLee Hyun-jaeLee Kang-ji was 23 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Wed, Nov 26 1997
Kim Ji-youngKim Ji-naKim Ji-young was 16 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Fri, Jul 08 2005
Oh Kwang-rokJi Hyun-wookOh Kwang-rok was 59 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Mon, Aug 27 1962
Han Gi-joongRyu Hyun-ilHan Gi-joong was 60 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Mon, Mar 13 1961
Choi Seung-hoonYoung Baek Min-jaeChoi Seung-hoon was 13 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Thu, May 01 2008
Jang GwangNoh In-HyeongJang Gwang was 69 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Sat, Jan 05 1952
Son Jin-hwanPrincipal Oh Jin-taekSon Jin-hwan was 55 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Sat, Jul 16 1966
Jeon Jin-giVice Principal Choi Sung-hanJeon Jin-gi was 55 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Sun, Jan 16 1966
Yang Jo-aKim Jin-heeYang Jo-a was 38 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Mon, Jan 24 1983
Ahn Sang-wooHan Myung-JinAhn Sang-woo was 44 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Thu, Nov 25 1976
Choi Woo-sungJang Kyu-youngChoi Woo-sung was 24 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Wed, May 21 1997
Lee Young-eunPark So-jungLee Young-eun was 39 in Melancholia - Season 1 - The Ten-Year-Old Genius (Episode 4).
Birthday: Mon, Aug 09 1982