Prince of the Demon World

William Twining (dubbed by Eguchi Takuya), who studied in a British aristocratic school, couldn't afford the high tuition because he was bankrupt. When he was trying to find a hidden treasury at home, he accidentally triggered the magic circle and summoned the demon Dantalin (dubbed by Terashima Takuya). He calls himself the Grand Duke of the Demon Realm and is the best candidate to be the acting king of the Demon Realm. He also says that William is a descendant of Solomon and is the "chosen one" of the Demon Realm and has the right to choose the acting king. As a realist who believed in science, William thought everything Dantalin said was nonsense and kicked him out of the house. When William returned to school again, he unexpectedly found that his outstanding tuition fees had been paid in full. Not only that, there was suddenly a transfer student in the class, and he turned out to be Dantalin. But Talin not only helped William pay his tuition, but was always by his side to protect him. At the same time, William met a mysterious student Sidi (voiced by Matsuoka Zhencheng), who claimed to be Viscount of the Demon Realm and was also a candidate for acting king... The story about the Demon Realm and the human world, demons and realists, begins here.