About

In this world, there were two massive economic spheres. One is— The Kingdom of Yen, where you reside. People receive their salaries in Yen and buy bread with Yen. And the other. The entity reigning across the sea. The Demon King of Dollars. A giant currency used by merchants worldwide, used for resource trading, and whose value no nation can ignore. "Your Majesty. It is 150 Yen to the Dollar." The King yawned on his throne. "Hmm." The following week— "It is 156 Yen." "That is only a difference of 6 from before." The following week— "It is 160 Yen." "Has the Demon King attacked?" "No." The following week— "It has exceeded 165 Yen!" "What of it!" Citizens flooded into the royal palace. "Medicine prices have more than doubled!" "We can't make swords because there's no iron!" "We can't survive the winter because there's no fuel!" ""Are you trying to kill us?!"" Across the sea... in the Demon King's Castle, the Demon King of Dollars laughs. "Fuhahaha! They must be in a total panic by now!" "Sending the Demon King's army to attack is so outdated." "Sell even more Yen! This is invasion through economics!" The King screams! "Call for Hero Guest! Do something!"