Idly indulging in baseless paranormal activities with the Occult Club, high schooler Yuuji Itadori spends his days at either the clubroom or the hospital, where he visits his bedridden grandfather. However, this leisurely lifestyle soon takes a turn for the strange when he unknowingly encounters a cursed item. Triggering a chain of supernatural occurrences, Yuuji finds himself suddenly thrust into the world of Curses—dreadful beings formed from human malice and negativity—after swallowing the said item, revealed to be a finger belonging to the demon Sukuna Ryoumen, the King of Curses. Yuuji experiences first-hand the threat these Curses pose to society as he discovers his own newfound powers. Introduced to the Tokyo Prefectural Jujutsu High School, he begins to walk down a path from which he cannot return—the path of a Jujutsu sorcerer.

Stubborn, spoiled, and naïve, 10-year-old Chihiro Ogino is less than pleased when she and her parents discover an abandoned amusement park on the way to their new house. Cautiously venturing inside, she realizes that there is more to this place than meets the eye, as strange things begin to happen once dusk falls. Ghostly apparitions and food that turns her parents into pigs are just the start—Chihiro has unwittingly crossed over into the spirit world. Now trapped, she must summon the courage to live and work amongst spirits, with the help of the enigmatic Haku and the cast of unique characters she meets along the way. Vivid and intriguing, Sen to Chihiro no Kamikakushi tells the story of Chihiro's journey through an unfamiliar world as she strives to save her parents and return home.

Humans and demons are two sides of the same coin, as are Assiah and Gehenna, their respective worlds. The only way to travel between the realms is by the means of possession, like in ghost stories. However, Satan, the ruler of Gehenna, cannot find a suitable host to possess and therefore, remains imprisoned in his world. In a desperate attempt to conquer Assiah, he sends his son instead, intending for him to eventually grow into a vessel capable of possession by the demon king. Ao no Exorcist follows Rin Okumura who appears to be an ordinary, somewhat troublesome teenager—that is until one day he is ambushed by demons. His world turns upside down when he discovers that he is in fact the very son of Satan and that his demon father wishes for him to return so they can conquer Assiah together. Not wanting to join the king of Gehenna, Rin decides to begin training to become an exorcist so that he can fight to defend Assiah alongside his brother Yukio.

In class 3-3 of Yomiyama North Junior High, transfer student Kouichi Sakakibara makes his return after taking a sick leave for the first month of school. Among his new classmates, he is inexplicably drawn toward Mei Misaki—a reserved girl with an eyepatch whom he met in the hospital during his absence. But none of his classmates acknowledge her existence; they warn him not to acquaint himself with things that do not exist. Against their words of caution, Kouichi befriends Mei—soon learning of the sinister truth behind his friends' apprehension. The ominous rumors revolve around a former student of the class 3-3. However, no one will share the full details of the grim event with Kouichi. Engrossed in the curse that plagues his class, Kouichi sets out to discover its connection to his new friend. As a series of tragedies arise around them, it is now up to Kouichi, Mei, and their classmates to unravel the eerie mystery—but doing so will come at a hefty price.