Among the royal court, there is an individual feared as much as revered: the Raven Consort Ryuu Jusetsu. Residing in her jet-black palace and isolated from the emperor, she is the subject of countless rumors. Claimed to possess mystic abilities, she is said to take on any request—from finding lost items to inflicting curses. While some call her an immortal sage, others believe her to be a terrifying revenant. But such comments fail to faze Jusetsu, who prefers to spend her days in quiet solitude. That is, until the emperor, Ka Koushun, barges into her court and asks for her assistance with a mysterious case. The young emperor's request requires Jusetsu to step out of her palace for the first time. Despite Ka Koushun's frequent visits annoying her to no end, she cannot bring herself to turn him away. Her predecessor's teachings echo in her ears: the Raven Consort is destined to remain forever alone and never desire anything. Yet Jusetsu finds herself making the first of several bonds when she asks Jiujiu, an innocently inquisitive court girl, to be her sole attendant. Together, they begin fulfilling requests from the people of the palace. However, unknown perils lurk in the outside world, and drawing attention to herself may bring Jusetsu face-to-face with a past that is better left undisturbed.

A nameless sword wakes up to discover he has been reincarnated from his former life as a human. With his power of telekinesis, he moves around this new world, acquiring several skills and abilities. When the sword comes upon a forest filled with monsters, he meets a young girl fleeing from a beast. Grabbing the sword, the girl easily defeats the monster. After introducing herself as Fran, she names the sword "Shishou" and officially becomes his wielder. The two set out to become adventurers, but unfortunately for Fran, she is a member of the Black Cat Tribe—a Beastkin group with a bad reputation. No member of this tribe has ever evolved into a mightier beast, but Fran plans to be the first and achieve her parents' dream. As Shishou promises to remain her sword until she attains her goal, they form an unstoppable partnership of impressive strength.

The charming incarnations of the seven deadly sins—brothers Lucifer, Mammon, Leviathan, Satan, Asmodeus, Beelzebub, and Belphegor—can never seem to keep out of mischief. They are demons feared across the Devildom, but, at the Royal Academy of Diavolo, one human transfer student has captured their collective hearts. Whenever the brothers miss them, they engage in ridiculous antics to keep themselves entertained, and they even drag others into their neverending shenanigans.

Second season of Peter Grill to Kenja no Jikan.