RAP MONSTER is known as a young CEO of a big company in South Korea. But that's not all from him. He is also a part of mafia world and one of the top leaders. With that, he has so many enemies. In which, his closet bodyguard sacrificed own life to save his, Rap Monster decided to take care of the only relative of his loyal bodyguard. SOOAH, in her final year of Nursing Care major, received a great pain and sorrow after losing her beloved older brother

This is a story about a new married couple who is so in love with each other but their newly marriage is tangled with third wheel who is a good friend of the husband. The presence of the third wheel gradually ruins their happy husband-wife's life and the wife starts to cheat.....  How could this happen? Did the girl want to cheat? And what happens when the husband find out their cheating dirt behind his back?