"Your Majesty? You certainly made a promise to me yesterday, Lania." "... Rion." Laniakea, the 3rd princess of Priatra, scorned for her weak elemental power. Hyperion, the 1st prince of Nervanan, lacking backing and abused even by the Empress. Overlooked and cast aside, the two are pushed into a royal marriage by their respective kingdoms. As long as they could leave their homeland, it didn't matter who the partner was. Three years passed. "What are you doing here? Now, let's return to the bedroom." 'At this rate, just like always... always, all night long, until dawn breaks...!' "Rion, let's rewrite our marriage contract. First of all, starting with this!" [The two shall sleep together __ times a __ for the production of an heir.]