Thousands of years ago, human evolved into two distinct intelligent species. Once, they coexisted together for hundreds of years. Once, they lived in harmony together.
Then, one day, it all changed.
No one knew how, and no one knew why. 30 years ago, one of the intelligent species spiraled out of control, turned aggressive and murderous, and killed. It wasn't war - it was pure slaughter.
These killers were then named the Monsters.
Two years after the Mass Attack, the other intelligent species began fighting back, using their weapons and research, targeting the Monsters' weaknesses so they would be unable to play to their strengths. Although the Monsters were more powerful, there were less of them. This movement of retaliation was called the Movement of Assassination, and it lasted four years. The surviving victims escaped and found refuge in a place in which only the richest of them live, inside an island bubble beneath the deepest waters of Earth, a place in which little to no Monsters thrived. It was a man, a clever and well-known man, that led them towards the island bubble which was named SQUAOII. He then became a legend, and went by the name "FREQSE".
These surviving victims that Freqse led were called the Lucky Ones.
Since then, the Lucky Ones lived in harmony inside SQUAOII, with all the Monsters they found executed or taken in for investigation. Freqse used his knowledge and power to build a laboratory to investigate the origins of the MAMA War, and what made the Monsters turn into Monsters, in an attempt to bring back harmony between these two species again. Ever since, this laboratory, called the EX'ACT Lab, had become the centre of admiration and attention. Ever since, no one inside SQUAOII, aside from scientists, has ever seen, or remembered seeing, what a Monster looked like.
But it wasn't a normal gang that spies on bad people.
It was EXO's Spy Gang, from EXO Planet.
A mission to go to Earth. A mission to get the most powerful weapon in the universe. A mission... That Baekhyun and Luhan were assigned to do. It was time. The time that only comes in 100 years and this time, it's Baekhyun's and Luhan's turn. This is when EXO Planet gets to destroy one of the planets out there with a weapon they built. Because.. That's part of the EXO tradition. To destroy a planet out there and then make another planet to replace it. The thing is... They have something to replace the planet, but nothing to destroy it. And they had no more scraps to build anything. So they have to choose a planet to go to and steal their weapon. And they chose... Planet Earth. The king of EXO Planet, Kim Joon Myeon, assigned their top mission workers. The ones that had the most power and can control their power better than anyone else. Luhan, and Baekhyun. At the same time, a girl name Lin Sook and her friend Kim Lee were doing their science project. Which was to build a powerful weapon. A laser beam. And that being said, EXO could use a laser beam to destroy a planet. But when Baekhyun and Luhan come to Earth, they fall in love. Kim Joon Myeon, always said that you can never fall in love with an Earthling. But they did. 2 years ago, Baekhyun left Lin Sook. And now he's back... Not to explain to Lin Sook why he left, but to destroy her.