Xi Luhan, Oh Sehun, Zhang Yixing (Lay), Kim Joon Myun (Suho), Byun Baekhyun, Park Chanyeol, Do Kyung Soo (D.O), Kim Jong In(Kai), Kris Wu Yifan, Huang Zitao(Tao), Kim Jong-dae (Chen) and Kim Minseok (Xiumin) belonged to the Exo. It was the most efficient group of the NCIS. They were elites. Each of them were professionals who knew their jobs. They had been trained to be the best of the best and they were a team since three years. But what happened when they atart falling in love? can they handle what they call an "irrational emotion that makes no sense for us" as they can handle the vilains? what happened if they are face to face not only a vilain who is planning to destroy the world but also with themselves and their feelings?

Oh Sehun: Leader of Exo. Strong and very determine. Works the most with Lay preparing plans to enter and exit the dens of the villains.

Xi Luhan: Expert in cracking codes and pirating websites. Often works with Suho. Expert in infiltration also due to his baby deer face.

Lay: Expert in making models and planning out the entry and exit of his colleagues. Often stays behind in the van supervising the movement of his colleagues in the dens. Works the most with Sehun.

Suho: Expert in informatics. Works with Luhan as a team. Silent and observant. Often stays behind to crack codes to allow his colleagues to enter the dens. Looks really like a detective.

Baekhyun: Works with Chanyeol. Expert in disguise. Has a weak spot for eyeliner. Like Luhan he can easily dupe the villains with his cute face and innocent questions.

Chanyeol: Likes to troll people. He can easily troll the villains and escape them. He works with Baekhyun and pampers him with gifts.

Kai: Best for infiltration. Loves to eat D.O’s cooking. He likes to fight with Sehun and to . He is very hard working though. He is also an expert in shadowing.

D.O: Expert in shadowing and easily dupe the villains with his cute face. Like to cook but his cooking can be deadly for the bad guys. His pastries smell so good and his face is so innocent that the villains do not doubt if he has poisoned the food or not. Kai often calls his the devilish angel.

Chen: Like to troll along with Chanyeol. Like his colleague he showers Xiumin with gifts and also with kisses. These four works together. He is also well trained in martial arts.

 Xiumin: Pampered by Luhan and Chen he is a deadly baby. He is an expert in infiltration and work along with Chanyeol, Baekhyun and Chen. He is quieter than the rest and does not express his feelings that much except to Baekhyun who likes to .

Kris: The dragon, Strong. Fierce and agile. He is expert in shadowing and infiltration. Likes to hug Tao especially to sleep. He also knows Kung Fu. Always ready to fight the enemy. However often gets kick in the by D.O when he hurts Tao.

Tao: The Panda. Silent and calm. Often team up with Kris. Hates to be hugged except by Kris to cuddle and sleep. D.O showers him with motherly love. Knows Wushu. When teamed up with Kris no one can stop them from beating the out of the enemies.