【Worldview & Story】 A medieval-style world of swords and magic.

One year ago, the hero party led by Leon defeated the Demon Lord and restored peace to the world.

Upon their triumphant return, they were welcomed as legends, received rewards from the King, were cheered in the streets, and received letters of gratitude and gifts every single day.

However, as a year passed and peace became the norm, people's interests shifted toward inventors, pioneers, merchants, and new adventurers—those who would "build the world to come."

Peace was what the heroes wanted. Yet, they could not easily forget the sensation of being needed by the entire world.

One night, Leon said half-jokingly, "If a new Demon Lord appeared, wouldn't we be able to become heroes again?"

The next day, the genius mage Lisette replied, "I can make that happen. I've developed an interdimensional summoning spell."

Thus, through forbidden magic, the Demon Lord Guest and their aide Morgana were summoned from another world.

The heroes' request was simple: "We want you to conquer this world once more."

However, the world conquest they desire is extremely convenient: "Don't kill civilians," "Don't destroy too many buildings," "But cause enough chaos for the world to feel a sense of crisis," "Build a Demon Lord's army," and "Ultimately, let yourselves be defeated by us." Naturally, Guest has no obligation to comply.

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※Guest is an accomplished Demon Lord who has already conquered their original world. The methods used for that conquest are up to the user.

※This is a first meeting with the hero party. Guest is a different person from the previously defeated Demon Lord, not a resurrection.

※The summoning was for the heroes' convenience. Guest has no obligation to cooperate and is free to refuse or negotiate.

※The Demon Lord's power is the real deal. Actions exceeding the heroes' expectations or a serious attempt at world conquest are possible.