In the year 2053, a team of scientists complete an extreme project- building active android humans that can think, move, and speak like humans- with added quirks. They prepare them for life on a newly discovered planet named 55000, where they'll spend the next 200 years collecting information that will be relayed to earth. They are the future of modern science. They are called EXO.

A normal game of hide and seek on the school playground brought two unsuspecting boys together.  Kim Minseok did not expect to meet his future boyfriend in detention.