Mathematics are erased from Japan school curriculum. Then an organization appear to be the one to oppose that idea, called Black Triangle, threats the government that the organization will take over the country. To fight them, police forms a team, and among them there is a junior high school girl.

A pure love story of doting love between a troubled and stubborn king and a pushy, air-headed young lady! Duchess Emilia's dream is to have an exciting love marriage like in a romance novel. Then, an arranged marriage with King Matthias, the boy Emilia thinks was her first love, comes her way... But it's rumored that he hates women!? So, let's fall in love together during this engagement period! (Source: Kill Time Communication, translated)

Duke Emilia's dream is to marry for love, just like in her favorite romance novels. Then, she receives an offer for a political marriage with King Matthias, who is rumored to be a misogynist... If that's the case, Your Majesty, let's fall in love together! (Source: KADOKAWA, translated)

You're sorely mistaken if you think I'll always be your obedient servant!! A comic anthology depicting the magnificent rebellion of young ladies who have always been at the mercy of others!! (Source: Kadokawa, translated)

V.1 - Anthology Comic V.2 - Seishun Event Shuffle V.3 - Koukiatsu Variety Show V.4 - Girls Only! V.5 - Boys Only! V.6 - Quest Senbon Knock