They are enemy, everything differentiate them :   Minho : 19 years old, tall, rich, charismatic, has good grades in Maths and Science, also-known as the most popular guy in the school with Jonghyun. He seems cold and unfriendly but he's really kind with everyone and helpful except with Kim Jonghyun, the only guy he hates. Minho is always with his best-friend Taemin and his close friends Nichkhun, Khyuhyun and Changmin. He is nicknamed  " big frog" by Jonghyun.

(Inspired by : http://sukittae.tumblr.com/post/43421515041/i-have-trouble-accepting-the-fact-that-youre )