Kenji is an everage High School student. He happens to be the sole heir to the head of Tanaka family. Ten years ago, Kenji made a promise... a secret promise with a girl he met. They promised one another that they will “get married when they reunite”. Since then, Kenji never let go of the pendant the girl gave him. Then one day, a beautiful girl named Misaki transfers into Kenji’s class. Their chemistry was more than off. There was not a moment where they were not fighting. But by weird turn of events, Kenji and Misaki agree to become fake lovers. Although his heart is really interested in his classmate Kana, Kenji must continue pretending to be Misaki’s boyfriend.