Your choices define who you are, and what kind of life you will lead. It's very logical, isn't it?

Aaron Yan chooses to live a life on the edge. He's a famous detective in Taiwan, and also the one that every underworld leader wants to kill. Aaron chooses to put his own life on the line to protect other people. Regrets? Never. Give up? Not until he dies.
Always by his side is Gui Gui, an author and journalist. She is the one who comfort him when no one else can, and standing firmly beside him when the world walks away.

Jiro Wang, a hot-temper and prideful detective, also chooses to lead a life that's parallel to Aaron's. In fact, they're rivals in all areas imaginable. He falls head over heels for Gui Gui, but guess who she loves?! Aaron. Another reason for Jiro to hate Aaron even more. Well, you can't help it. Love has the power to turn anyone into a total idiot!

With such a profession, both Aaron and Jiro often find themselves in dangerous situations. Sometimes, it involves Gui Gui, the girl with the power to rob the heart of two clever detectives.

Further complicated by other people's interferences, the relationship turns from sweet to sour...and then to bitter.

Aaron and Jiro are both amazing detectives. All of their cases are thoroughly investigated and finally, closed with the right man behind bars. But can they solve their own problem?

Regrets....

Hatred....

Love....

And forgiveness.....

.....nurture their relationship. But will it actually....grow?

This classic love problem haunts every moment of their lives.

What worse, their enemies are waiting for them to fall...and take advantage.

They are the ones that put their lives on the line to protect strangers and put an end to others' sufferings, but will they have a happy ending of their own? And closed this case?