AMINE AND MANGA

Pandora Hearts (パンドラハーツ, Pandora Hātsu ) is a Japanese manga series by Jun Mochizuki. Originally starting serialization in the shōnen manga magazine GFantasy published by Square Enix in June 2006. There are nine volumes currently released in Japan. The manga series was licensed for an English language release by Broccoli Books but has been dropped; it has been licensed by Yen Press since then. It has also been made into an anime version, produced by XEBEC

Oz Vessalius, heir to one of the duke houses, has just turned fifteen. His life is rich and carefree, darkened only by the constant absence of his father. At his coming-of-age ceremony, however, everything changes. For no reason that he can discern, he is cast into the prison known as the "Abyss", only to be saved by a "chain" known as Alice, the bloodstained black rabbit. The mystery there begins as Oz unravels the mystery behind Alice, the Abyss and the strange organization known as Pandora. The series features heavy references to Lewis Carroll's Alice's Adventures in Wonderland and Through the Looking-Glass and can be considered both fantasy and mystery.

Chains (チェイン, Chein)
Beings from the Abyss that were at one point, human, transformed by the Intention of the Abyss. They must sign a contract with a human contractor in order to leave the Abyss. Chains involved in illegal contracts must repeatedly consume humans in order to gain power....
An agreement between a chain and a contractor. The chain is bound within the contractor and can be called out at will. In return, the contractor provides passage for the chain out of the Abyss. Legal contracts that were made possible by Pandora have been granted the ability to never age to the Contractor. In illegal contracts, a clock-like seal appears somewhere on the Contractor's body, over their heart. Each time the chain's powers are drawn, the hand in the seal moves like on a clock. Once the hand makes one full rotation, both the contractor and the chain are dragged into the deepest level of the Abyss.
Contractor (契約者, Keiyakusha)
A human who makes a contract with a chain. There are certain procedures to making a contract, but impromptu contracts can also be made, although they are illegal.
Abyss (アヴィス, Avisu)
The world that chains come from. It exists in a different dimension as the world, and as thus, time doesn't truly exist in the Abyss. A person can find themselves in any random time period upon exiting the Abyss. According to Break, the Abyss can appear as a prison or a broken toy box, depending on the person.
Will of the Abyss (アヴィスの意志, Avisu no Ishi)
The existence that governs the Abyss. Usually appears in the form of a bloodied rabbit doll with big round eyes. The real form of the Will of the Abyss is Alice with white hair. Apparently the Will of the Abyss wants Oz and Alice to go back in the Abyss. The Intention of the Abyss and Alice are somehow connected. At the same time, the Intention of Abyss is born in the Abyss, while Alice was born in the human world. The Will of Abyss hates Alice and wanted to destroy her. It is revealed her real name is also Alice, but most time she is called The Will of Abyss.
It is revealed in the manga and episode 22 of Anime that The Will of Abyss is the "Alice" Jack knows. Whereas The Will of Abyss wear bright colored dress and the current Alice wear dark coloured dress. The point of this can be shown when the current Alice says "She uses that bond to come here from the depths of half and each of day." Jack respond in shock that the depths she's talking about is Abyss. So that confirmed The Will of Abyss is the current Alice Jack knew.
Four Great Duke Houses (四大公爵家, Yondai Koushaku Ke)
It currently consists of the Vessalius, Rainsworth, Nightray and Barma family. These four houses have been in existence before the Tragedy of Sabrie. They founded the Pandora and each hold chains and a door to the Abyss. Of these four houses, the Vessalius and Nightray houses are thought of as exact opposites, like light and dark: the Vessalius house works publicly, while the Nightray house is responsible for doing the backstage work.
Before the Tragedy of Sabrie occurred, the Vessalius family was only a third class noble family, and thus, not part of the four duke houses. Instead, the fourth house was the Baskerville house - with Glen as the head. When Jack killed Glen for starting the Tragedy of Sabrie, the Vessalius family were seen as heroes. And thus, the Vessalius substitute the Baskervilles, as the fourth duke house. Therefore, the Baskervilles holds the fifth door to the abyss.
Pandora (パンドラ, Pandora)
An organization founded by the four duke houses. It specializes in research regarding the Abyss.
Tragedy of Sabrie (サブリエの悲劇, Saburie no Higeki)
The city of Sabrie was once the capital city of the world. However, 100 years ago, for unknown reasons, Glen Baskerville used a ritual to send the entire city, with its citizens, into the Abyss. Glen was then supposedly killed by the four duke houses.
Doors
Doors are gates to the Abyss that the four duke houses control. Each house has control over one, with Baskerville holding the last, fifth Door.

Please Twins! (おねがい☆ツインズ, Onegai Tsuinzu, Onegai ☆ Twins), is an anime television series, scripted by Yousuke Kuroda and produced by Bandai Visual, which was later adapted into a light novel and one-volume manga series. It centers around a family of three teenagers in high school all living together who are unsure which two of them are related to each other due to a reference from an old photograph. The Please Twins! anime series is a spin-off sequel to Please Teacher! that first aired in Japan on the WOWOW satellite television network on July 15, 2003 and finished with a total of 12 episodes plus a later OVA episode released on DVD. The series was later adapted into a light novel in 2004, which spanned a total of two volumes and, soon after, into a short one-tankōbon manga version (authored by Japanese mangaka Arikan), which was serialized in MediaWorks's Dengeki Daioh magazine in September 2005.

Please Twins! is a story mainly revolving around three high school students: Maiku Kamishiro, Karen Onodera, and Miina Miyafuji. The three were drawn together by a photograph of their childhood home which later makes all of them seek out the house in the picture. However, the picture only has two children - a boy and a girl. Hence, only one of the girls, Karen or Miina, is related to Maiku. The only other identifying feature of the pair in the picture is that the boy and the girl have eyes of the same unusual color; a feature that furthers the ambiguity as all three of them have the same eye color.
The main concern of the male lead, Maiku, is that he is in love with both of the girls, and he does not know which one is his twin. In addition, the two girls are in love with Maiku, forming a love triangle that can't be resolved until the truth of their relationship is known. The three main characters, mostly the two female leads, are in a predicament of wanting to discover their past versus the risk of losing a romantic relationship.
The events of the story are set after Please Teacher! and characters from the series appear in supporting roles throughout Please Twins!.

As with Please Teacher!, the setting of the series is Lake Kizaki, located in Nagano, Japan, and the region and its surrounding locations are featured prominently and accurately across the series. For instance, in one episode, characters travel to Karuizawa, Nagano located on the Nagano Shinkansen and Shinano Railway line. The shopping center, staircase, and Church Street all are located 2 kilometers north of JR Karuizawa Station off the main road. The track that Miina and her childhood friend run on is said to be in Ueda, Nagano, also on the Nagano Shinkansen and Shinano Railway lines just south of Nagano City. The time it takes place is following the Please Teacher! series, which did not occur before 2009.