Jezreel is the daughter of the two famous detective, Akihiro and Alyana Sy, both of her parents where murdered and Jezreel knew that the reason behind it is the case that they are investigating, because of what happened to her parents, Jezreel decided to go to Shinzui Academy to unfold the mystery behind it.

Usually, a couple gets engaged as they fell in love and bounds to be together for the rest of their lives. The guy goes down to his knees and asks permission from his girl, of course the girl says yes. But what if they met accidentally, not knowing that they're engaged to be married? Let's see how Rohann and Louise deal with this fiasco they never knew would happen.