as Hong Chan-Ki A playboy and vitamin with bright, positive energy. He is majoring in Computer Science at Myeongil University. The best chef at Myeongil University though he talks too much. He appears to be very carefree but often feels empty inside and has his own worries he tries to hide. He is the only child of two civil servants in The Ministry of Economy. He easily gets good grades though he doesn't study at all, just soulless memorization. Lives across from Yeo Jun's dorm. He has been Kim Sobin's good friend since childhood but has never flirted with her or seen her as more than a friend. Lee Woo-je as Han Jung-ho A 3rd year in Business Administration. After being discharged from the military, he returned to school late so his grades were higher than those of his fellow 3rd years. He doesn't try but hates to lose. The type of person who believes in age seniority and wants to be treated with that respect. Cries whenever his juniors have the slightest objection to his arguments and opinions. Hangs out with few of his classmates but clings to Yeo Jun because he's rich, kind, and brings snacks. Yoo In-soo as Oh Chun-gook A 3rd year of Business Administration who likes to gossip and spread rumors. Jungho's best friend and junior. He's weak against the strong but very strong against the weak. The fox next to the tiger. Yoon Jung-hoon as Ko Sang-tae A freshman in Business Administration who went to high school with Yeo Jun and is now also his college classmate. Though he hangs around Yeo Jun, he is actually jealous of him. as Park Hye-ji A 3rd year in Business Administration who likes to hang out but has a double-faced attitude. She discriminates against others based on money, appearance, and education. She tries to get along with the popular freshman, Yeo Jun but things don't go well. Becomes jealous of Kim Sobin because she gets close to Yeo Jun and tries to interfere. as Lee Gi-sun A 3rd year in Business Administration and Hyeji's best friend. She doesn't approve of her friend's discriminatory behavior but listens to her and completes her difficult requests. Bin Chan-wook as Park Jung-bum A 4th year in Business Administration and a brazen liar. He is a working scholarship student in the teaching school and Business Administration department office. He is jealous of