During the Prohibition era, in the Lawless district the law has no power, the mafia rule the streets, and the illegally made liquor flows freely. At one time Avilio lived in this district, but after a mafia dispute ended in the murder of his family, he went into hiding. Later, Avilio receives a letter from a mysterious person that ignites his passion for revenge and leads him to return to Lawless. There, he infiltrates the Vanetti family and gets close to Nero.
Haruaki Yachi is a high school boy and naturally resistant to curses. His father, Honatsu, sends him cursed instruments called "Worse" to try to break this. One day, Haruaki receives a black cube from Honatsu. During the night, he encounters a naked silver-haired girl stealing rice crackers. She is the human form of the black cube, an instrument of torture called "Fear in Cube". Haruaki and the girl "Fear" fight together against other Worse instruments and their owners using Fear's 32 mechanisms of torture.
After experiencing a bizarre dream, Madoka Kaname, a kind 14-year-old girl, encounters a magical creature named Kyube. Madoka and her friend Sayaka Miki are offered the opportunity of gaining magical powers if they agree to make a contract with the strange little being. He will also grant them one wish, but in exchange they shall risk their lives by accepting the responsibility of fighting witches. Invisible to human eyes, witches are catalysts of despair in the areas they inhabit. An ally of Kyube, a magical girl named Mami Tomoe, befriends and encourages the two girls to accept the contract. For an unknown reason, another magical girl named Homura Akemi is determined to prevent Madoka from accepting the deal.
Set in the Shinigami technical school for weapon meisters, the series revolves around 3 groups of each a weapon meister and a human weapon. Trying to make the latter a "Death Scythe" and thus fit for use by the Shinigami, they must collect the souls of 99 evil humans and 1 witch.
At private Mihama Academy, five girls who seem normal attend the school due to "certain reasons." A sixth student "with reasons" named Yūji Kazami transfers in. Yūji has an ego with such darkness that he does not fade in comparison to the five girls, who are so different from the norm. As they each meet each other, they deepen their understanding of one another. Through the small bits of progress they make, each of their hearts will be affected. When Yūji arrives, a story of girls who are trapped by their pasts begins.
Ken Kaneki is a bookworm college student who meets a girl names Rize at a cafe he frequents. They're the same age and have the same interests, so they quickly become close. Little does Kaneki know that Rize is a ghoul - a kind of monster that lives by hunting and devouring human flesh. When part of her special organ - "the red child" - is transplanted into Kaneki, he becomes a ghoul himself, trapped in a warped world where humans are not the top of the food chain.
In modern day Tokyo, society lives in fear of Ghouls: mysterious creatures who look exactly like humans—yet hunger insatiably for their flesh. None of this matters to Ken Kaneki, a bookish and ordinary young man, until a dark and violent encounter turns him into the first ever Ghoul-human half breed. Trapped between two worlds, Ken must survive the violent conflicts of warring Ghoul factions, while attempting to learn more about Ghoul society, his newfound powers, and the fine line between man and monster.