Killy, a silent loner possessing an incredibly powerful weapon known as a Gravitational Beam Emitter, wanders a vast technological world known as "The City". He is searching for Net Terminal Gene, a (possibly) extinct genetic marker that allows humans to access the "Netsphere", a sort of computerized control network for The City. The City is an immense volume of artificial structure, separated into massive "floors" by nearly-impenetrable barriers known as "Megastructure". The City is inhabited by scattered human and transhuman tribes as well as hostile cyborgs known as Silicon Creatures. The Net Terminal Genes appear to be the key to halting the unhindered, chaotic expansion of the Megastructure, as well as a way of stopping the murderous robot horde known as the Safeguard from destroying all of humanity.
When his father died, Denji was stuck with a huge debt and no way to pay it back. Thanks to a Devil dog he saved named Pochita, he's able to survive through odd jobs and killing Devils for the Yakuza. Pochita's chainsaw powers come in handy against these powerful demons. When the Yakuza betrays him and he's killed by the Zombie Devil, Pochita sacrifices himself to save his former master. Denji is then reborn as a Devil-Human hybrid known as Chainsaw Man. After his transformation, he's quickly recruited by Makima to join the Public Safety Devil Hunters under threat of extermination now that he's technically a Devil. Now that he's living comfortably for the first time in his life, Denji struggles to determine his dreams and form meaningful relationships while killing Devils and working alongside other eccentric Devil Hunters.
In a wonderfully created fantasy world, Coco is a young normal country seamstress who has always been fanatic about magic and dreams of using it. However, it is said that magic can only be used by witches. One day, Coco secretly witnesses a traveling witch, Qifrey, doing magic by drawing it. Equipped with this bit of knowledge, Coco, using an old magic book and pen she had gotten from a mysterious brimmed hat witch when she was little, tries drawing her own magic. This results with her turning her home and mother to stone. In order to rescue her mother, Coco must become a witch so she may gain access to a witch's library where she hopes to find a counter spell. Qifrey who is already instructing three other girls in magic, agrees to let Coco become his fourth witch apprentice. The story will follow Coco's apprenticeship as she discovers the secret world of magic, encounters dangers, and learn the mysteries involving the forbidden group of brimmed hat witches who have taken an unknown interest in her.
