Okinodoku desu ga, Bouken no Sho wa Maou no Mono ni Narimashita.
お気の毒ですが、冒険の書は魔王のモノになりました。
A newly crowned demon lord struggles with monotony, as his predecessors have already claimed all of the Underworld, leaving him without rivals or challenges. His only companion is his maid, Sarah, and he grows weary of indulgent feasts and idle pleasures. Seeking a new purpose, he devises a plan to invade the human world. Accompanied by Sarah, he sets out to conquer the Ground, a realm inhabited by humans. The question remains whether he will achieve his goal or be stopped by forces of justice.
Traduzione in corso — testo originale in inglese.