Chiyo Mihama begins her high school career as one of the strangest students in her freshman class—a tiny, 10-year-old academic prodigy with a fondness for plush dolls and homemade cooking. But her homeroom teacher, Yukari Tanizaki, is the kind of person who would hijack a student's bike to avoid being late, so "strange" is a relative word. There certainly isn't a shortage of peculiar girls in Yukari-sensei's homeroom class. Accompanying Chiyo are students like Tomo Takino, an energetic tomboy with more enthusiasm than brains; Koyomi Mizuhara, Tomo's best friend whose temper has a fuse shorter than Chiyo; and Sakaki, a tall, athletic beauty whose intimidating looks hide a gentle personality and a painful obsession with cats. In addition, transfer student Ayumu Kasuga, a girl with her head stuck in the clouds, fits right in with the rest of the girls—and she has a few interesting theories about Chiyo's pigtails! Together, this lovable group of girls experience the ups and downs of school life, their many adventures filled with constant laughter, surreal absurdity, and occasionally even touching commentary on the bittersweet, temporal nature of high school. [Written by MAL Rewrite]

Shizuku Tsukishima is an energetic 14-year-old girl who enjoys reading and writing poetry in her free time. Glancing at the checkout cards of her books one evening, she notices that her library books are frequently checked out by a boy named Seiji Amasawa. Curiosity strikes Shizuku, and she decides to search for the boy who shares her love for literature.

Meeting a peculiar cat on the train, Shizuku follows the animal and is eventually led to a quaint antique shop, where she learns about a cat statuette known as "The Baron." Taking an interest in the shop, she surprisingly finds Seiji, and the two quickly befriend one another. Shizuku learns while acquainting herself with Seiji that he has a dream that he would like to fulfill, causing her dismay as she remains uncertain of her future and has yet to recognize her talents.

However, as her relationship with Seiji grows, Shizuku becomes determined to work toward a goal. Guided by the whispers of her heart and inspiration from The Baron, she resolves to carve out her own potential and dreams.

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]

Third season of Log Horizon.