Yogen no Keizaigaku

A princess known as the Oracle, Alfina, delivers a dire prophecy to the citizens of the Kingdom of Crownheight, but her warnings are ignored due to her lineage from a rebellious family. Meanwhile, Ricardo, an adopted son of a merchant and a reincarnated economics graduate, studies at the Royal Academy. During a dispute with a wealthy merchant, Alfina supports him, and their relationship grows quickly. Using his knowledge of modern economics, science, and math, Ricardo works to counter the impending disaster Alfina foresees.