Maki, The second daughter of Bonza family… She’s a hot headed girl and she always fight for what she think is right and for the people she cared. One day, she found out that her family’s business is facing a bankruptcy so she looked for a solution to save the company, and Fredo, a super rich mysterious guy, offered to lend her money… But in return, she must sign a contract with him and become his personal assistant/ girlfriend, working for him twenty-four hours a day and seven times a week… It also included to the contract that she mustn’t fall in love with Fredo no matter what… And there will be an event that will cause confusion into Maki’s heart and an ex’s that will come back and will try to ruin everything between this two… And as for Fredo, no one ever dare to get close to him or they will get hurt… But Maki never sees him as a dangerous guy like what she hears from everyone, will this be her weapon to fredo’s heart? Or she will fail to show him what she really feel? Will Maki be able to fulfill the contract within a year? Or she’ll be able to change Fredo known as a “Devil of the high class”, because of his bad reputation known by the people in the high society…