With strange events occurring at Reien Girls' Academy during winter break, Azaka Kokutou, a student and apprentice mage, is sent by her master to investigate. It turns out that another mage has been stealing the students' memories using fairies that, despite her magical talent, are invisible to Azaka. So Shiki Ryougi, an acquaintance with special eyes who can see what Azaka cannot, is also sent to the academy to help with the crisis. 

However, the two have trouble getting along, mainly due to the fact that Azaka views Shiki as her romantic rival. But when the fairy situation quickly spirals out of control and more layers of the mystery are revealed, Azaka must learn to work with Shiki in order to save her classmates.

[Written by MAL Rewrite]

In the story, the seasons have changed and it will soon be the second spring. Tatsuya and Miyuki have finished their first year at First Magic High School and are on their spring break. The two go to their villa on the Ogasawara Island archipelago. After only a small moment of peace a lone young woman named Kokoa appears before them. She has abandoned the Naval base and she tells Tatsuya her one wish.

(Source: ANN)

In search of a mystical ingredient known as Sky Fish, Meliodas and Hawk stumble upon a spring that suddenly transports them to the Sky Temple: a breathtaking land above the clouds, inhabited by beings called Celestials. Meliodas, however, looks strikingly similar to a local criminal called Solaad, and is imprisoned and shunned as a result. Meanwhile, the kingdom of the Sky Temple prepares to defend the Great Oshiro's seal—said to harbour a three thousand-year-old evil—from the malevolent Six Knights of Black, a group of demons who seek to destroy the seal. However, the Demon Clan is successfully unleashed and terrorizes the land, prompting the remaining Seven Deadly Sins and the Celestials to fight against their wicked foes. 

The battle progresses well, until one of the Six Knights awakens an "Indura of Retribution," an uncontrollable beast from the Demon Realm. With its overwhelming strength and sinister power, the Seven Deadly Sins and Celestial beings must now work together to defeat the creature that threatens their very existence.

[Written by MAL Rewrite]

Low on luck after a series of unfortunate events, You Keika works part-time to try bringing himself out of a life of poverty. After a strange encounter with a white-haired man in a junkyard, You wakes up to discover that he was killed in a sudden accident and has become a spirit. The man he had encountered, Tanmoku Ki, is revealed as the 13th Youmeshi of the Tanmoki, the highest-ranking exorcist family of China. Noticing the wandering spirit, he offers You the opportunity to form a pact: he will offer You protection from humans and in return, You will have to become his spirit shadow, keeping him safe and guarded at all times. From then on, the two face untold challenges in the spiritual world, striving to keep those around them safe from harmful spirits. Along the way, the pact they formed grows into something more; a bond that neither of the two ever expected. Behind their roles as master and servant, a lingering admiration begins to emerge. [Written by MAL Rewrite]