666 Satan

In the near future, human technology becomes centered around Mystickers, or tattoo-like stickers which are placed on objects in order to use their abilities. But Mystickers can do much more than this, a secret only "Blazers" know. A secret Daichi, a good-humored teenager with an obsession for all things "cool," is destined to find out when he suddenly finds himself targeted by people who tell him he, too, is a Blazer…

In this story, we’re treated to a twisted, gothic-horror remix of the classic Cinderella story as re-imagined by a shounen author for a shoujo audience, where we find, in the end, that nothing comes free, and if it sounds too good to be true, well, there’s usually a catch. (You’ve never seen Cinderella like this!)

Set in a ruined world overrun with chimerical creatures where the female creatures eat the males. Two creatures explore the land: Usagi, the elder sister, protects her brother Mitsuki, a curious chronicler who is able to read the books in their secret hiding place to know that the world was once different.

All humans are wolves in sheep's clothing and the same applies to Douchinji Youichi, a boy who always daydreams about various things, but never says anything out loud. One day, upon seeing a red full moon, a girl came dashing at him before punching him with a silver knuckle, knocking him unconscious and unable to really remember the incident. The next day, a new student, Akatsuki Ayame, joins his class. On his way home, Youichi discovers that the girl who punched him is Ayame, and her silver knuckle draws out what she calls a "wolf", a person's inner thoughts or desires, from a "sheep", the superficial mask which restrains the inner "wolf" from surfacing. However, when someone is full of desires and becomes obsessed with their inner thoughts, the "wolf" outgrows the "sheep" and the person will be able to see the World of Red Moon. The girl explains that she doesn't have a "sheep" and would like to have one, so she requests Youichi to become her "sheep". Youichi agrees to it, marking the beginning of a story of the red riding hood who devours the wolf.

Set in the near future after the Japanese government has passed the Vengeance Act, a law which legalizes revenge killing, the series focuses on the members of the Special Execution Team of the Judicial Police Force, known as Sukedachi-nin (助太刀人, "Avengers"). These so-called Avengers are tasked with seeking vengeance on behalf of the bereaved by executing criminals using the same methods they themselves used on their victims. The series consists of two parallel serializations, one in Shonen Gangan and one in Gangan Online. The Shonen Gangan series focuses on Avenger No. 9, Kōta Kiyodera, a kind, passionate man who strongly sympathizes with the victims for whom he seeks revenge. The Gangan Online series focuses on Avenger No. 8, Ryōko Koizumi, a young woman described as an angel who descends on the avenging fields to enforce the Vengeance Act. Other members of the team include Avenger No. 0, Captain Kamui Oda and Avenger No. 7, Yūji Yamagishi.

In the not too distant future, mankind battles over O-Parts, relics from an ancient civilization. It takes a special kind of person to unlock the full potential of these remnants from the past, and a unique breed of humans known as O.P.T.s (or O-Parts Tacticians) become a force to be reckoned with. Unfortunately, O-Parts can be used for good or evil purposes. Jio is a young boy with a tragic past who only trusts one thing in the world: money. Little does he suspect that he is actually a very powerful O.P.T., and inside him sleeps a demon of incredible ferocity. He meets up with a girl named Ruby, and together they decide to embark on a dangerous quest to discover as many O-Parts as they can. Will Jio help Ruby realize her dream of becoming a world famous treasure hunter? More importantly, will Ruby help Jio realize his dream of–world domination?!