She had to pretend to be in love with the person she has been trying hard not to fall for. But now there's no escape and she's been falling more and more for him, even though she knows that she'd be the one getting hurt in the end.

EXO are a South Korean-Chinese boy band produced by S.M. Entertainment. There are 12 members who are divided in two sub-group EXO-M & EXO-K

This is a detective story that revolves around the highly intelligent logician Yan Su and the mysterious Zhen Ai, and how they gradually fall in love whilst successfully solving cases together. The story begins with Zhen Ai seeking out the help of Yan Su in solving a mysterious code. Although Yan Su discerns that Zhen Ai is not being entirely truthful with him, he still agrees to help her on account of his friend. Yan Su and Zhen Ai thus start their turbulent journey of solving crimes and navigating traps whilst trying their best to protect each other along the way.