If this were a dream, it’d be such a hyperrealistic dream. Who would’ve thought destiny would play tricks on ‘Nakun’ by sending him back almost four hundred years ago to the Ayuttaya era while asleep? Amid confusion and panic, the people he meets there call him ‘Klao,’ the son of the convicted nobleman who’s been missing. Now, Nakun has to pretend to be Klao while finding a way back to the present time and solving mysteries of the real Klao. However, the more he searches for clues, the more puzzles he finds. Plus, there’s this ‘Muun Phop,’ Klao’s trusted non-blood brother, who keeps his eyes on him all the time. And he found himself starting to feel increasingly fluttering in his heart under Muun Phop's gaze.

"Maybe it’s not that bad. We both get the mutual benefits anyway.” When one of them takes it lightly and the other takes it seriously to be friends with benefits. Uea, a graphic designer who is cold-hearted, always wears a poker face, and King, a programmer who has never wanted to be in a serious relationship with anyone, made a deal to be friends with benefits in secret. From a friend of another friend who barely talk nicely to each other for years to a friend of another friend that comes with benefits instead. However, it seems like this kind of relationship is bringing them unexpected trouble. While they both gave their word that they won’t fall for one another, one of them has fallen hard into the pool of this forbidden sentiment nonetheless!

Jade, a half-Thai, half Chinese man, works as a graphic designer for a company. Jade is always the one in the middle. He is the middle child. He has got an average grade in school. People around him, either his siblings or his friends are so good-looking that he has always been overlooked or becomes just a middleman for those who want to know his siblings and friends personally. Jade has been in this situation for years and has to accept it unwillingly. He has built a high wall in his heart. He does not expect a romantic relationship since he has learned that whoever comes to him just wants to get close to people around him. One day, his office welcomes an intern called Mai, an attractive university student who comes to break the wall in Jade’s heart!