Riddle Story of Devil

Unaired episode 13 of Akuma no Riddle released with the seventh Blu-ray/DVD volume.

Anzu Hoshino is a "non-heroine type" high school girl who pays no attention to fashion or romance and spends every day playing video games. When the wizard Riri suddenly appears, Anzu is forced to participate in the Magical World's project to stop population decline. This romantic comedy depicts what happens when Anzu goes from living a life immersed in her three favorite things — video games, chocolate, and cats — to being surrounded by handsome guys. Anzu is steadfast in her claim that she never wanted to live in a dating simulation game. She meets a handsome guy who is so popular it hurts, a clean-cut and athletic childhood friend, and a beautiful rich young guy who is naive about the outside world. By meeting Anzu, they all begin to change gradually.

The story takes place many years in the future where the game "Rhyme," a virtual fighting game, is incredibly popular and people possess "AllMates," convenient AI computers. Aoba leads an ordinary life, working at a junk shop and living with his grandmother on the island of Midorijima. Unlike his friends, he doesn't participate in Rhyme, nor does he belong in a gang. However, when rumors of people disappearing spread, Aoba finds himself needing to unravel the mysteries behind the island in order to protect his everyday life.

The story follows Riddle, a young man who lost his companions to a mysterious group known as the "Box of Malice." On the brink of despair, after 1,000 years, Riddle eventually achieves the ability to reverse time. With a thousand years of knowledge and experience, the Great Sage Riddle journeys to the past.