Kant, a badass tattooist police informant, is asked to investigate a hitman brother duo. But when his attempt to dig up information by getting close to the younger brother, Bison, gets curbed by the overprotective big brother Fadel, Kant has no choice but to find someone to take Fadel out of the way. That’s where Style, his good-looking foolhardy mechanic friend, comes in. Now the two friends are putting their lives, and hearts, on the line. Will this mission end with a kiss or a kill?

In 1915, Rati returned to the Kingdom of Siam after spending several years in France. Upon his return, he was asked for his help in teaching French to the wealthiest bureaucrats, which he agreed to do for the six months of his stay. During this period, he met Thee. Heir to a wealthy family, he introduced the country's customs and traditions to the young foreigner. Seeing their rapprochement with a bad eye, Thee's family did everything possible to separate them.