Summoned to another world in order to defeat the Demon Queen, the Hero completes his quest and is sent back to his home world. As he waits for his beloved Princess to summon him back again, he receives a knock at the door... from the Demon Queen herself!

Blade is a carefree transfer student whose only goal is to make friends with his classmates at Rosewood Academy, a school for heroes-in-training. On the surface, Blade seems like an ordinary boy, but he is hiding a miserable secret with seeds that start l

In the final showdown between the Demon King and the Hero, the latter used all his power to seal away the former. To exact her revenge on her father's nemesis, the Demon King's daughter, Hel, resurrected the Hero and planned to use him as her personal s

Yurisina, the daughter of the demon king, has always wanted to become a full-fledged demon by making her first contract with a human.That's when Princess Marianne of the Pedin Kingdom summoned her to take revenge on Queen Orphelius who poisoned her, and

“The world will be destroyed if you have sex with the Demon King's daughter.” After defeating the Demon King and saving the other world, the hero Takahiro returns to the real world. One day, Lilia, the daughter of the Demon King, suddenly arrives at Ta

The strongest Demon King, Ahriman, aims to rule every part of the world. However, he had to stop his world conquest all of a sudden. What is the unexpectedly cute reason behind this...?