Two high school geniuses scheme to get the other to confess their love first.

Two geniuses. Two brains. Two hearts. One battle. Who will confess their love first...?!

Will Kaguya's family force her to marry a man she doesn't love in order to fulfill their political and financial ambitions? As the reign of Kaguya's father approaches its end, the war of succession between her brothers heats up. Meanwhile, Ai gets a new assignment as a bodyguard, Yu and Miko get cozy on a couch, and...Miyuki accepts a hefty bribe?!

Family matters.