After her older sister refuses to go to an arranged marriage meeting with Takane Saibara, the heir to a vast business fortune, high schooler Hana Nonomura agrees to be her stand-in to save face for the family. But when these two utter opposites pair up, get ready for some sparks to fly! While Hana contemplates whether or not to take Rino's advice on matters of the heart, Takane and Okamon duke it out to determine who's better suited for Hana! With everything on the line, who will win in this no-holds-barred love showdown?