Kai (Korean: 카이) was born Kim Jongin (Korean: 김종인; Hanja: 金鐘仁) on January 14, 1994 in Seoul, South Korea. He was cast into S.M. Entertainment after winning in the company's Youth Best Contest in 2007. Prior to joining S.M. Entertainment, Kai was trained in ballet and jazz dance. In 2008, he made a brief appearance in TVXQ's music video, "HaHaHa Song" along with Exo-K's Suho and Chanyeol. Kai was the first of the twelve members to be formally introduced through teaser trailers; his teaser was released on December 23, 2011. Kai appeared in twelve more trailers in the next three months, and performed with Exo-M's Lu Han, Tao, and Chen on SBS's Gayo Daejun event on December 29, 2011. Kai graduated from Seoul Arts High School in early 2012.
Sehun (Korean: 세훈) was born Oh Sehun (Korean: 오세훈; Hanja: 吳世勳) on April 12, 1994 in Seoul, South Korea. Sehun was scouted by a casting agent in the streets when he was twelve, and was successfully cast into S.M. Entertainment in 2008, after going through four auditions in two years. Sehun was formally introduced as a member on January 10, 2012. Sehun is currently attending his final year of high school in Seoul Arts High School.
Kai and Sehun are Exo's maknaes , both born in 1994 and attended the same high school.They are the main dancers so they get to spend a lot of time practicing together. It's all sorts of obvious how natural they are with each other and how can you directly classify them as bffs as they interact.this community was made to show their sincere and genuine relationship!