Digimon

A television series which is also a Japanese manga, Digimon is similar in many ways to the world of Pokemon, with only a few, but sitll significant, differences. As a result, Pokemon and Digimon are frequently crossed over. The series has progressed through several seasons but only Seasons One and Two are linked, with all other Seasons after those happening in alternate universes. The basic plot is that a child from the Real World is given a special companion with which to fight off the forces of evil that seek to exploit the Digital World. Badfic authors often use the loophole that the children technically are all from the Real World, and so don't place the AU label on stories that have little to do with the canon story and often fail to include the Digimon.

First Season
The first Season of Digimon, this follows the exploits of seven, and later, eight, children who are dragged away from summer camp and into the Digital World. Upon entering the world, each child is found to have a companion Digimon, similar in natural to the relationship between Humans and Daemons in the world of 'His Dark Materials', by Philip Pullman.

Items

 * Digivices: A symbol of the Digidestined, The initial use of the Divice is to harness the emotional energy of a Digidestined and give it to their partner Digimon, enabling them to Digivolve to their Champion Level. When the energy within a Digivice merges with the energy in one of the Crests, it enables Digivolution to the Ultimate Stage, and in the case of two of the characters, enables their Digimon to warp-Digivolve to the Mega Stage. The Digivices have several other functions, the most basic is an inbuilt-clock, the most notable the ability to purify 'corrupted' Digimon. The energy within the Digive can also be used to restrain evil Digimon, track other Digivices, and on one occasion, create a forcefield large enough to contain an explosion.
 * Crests: One of the main plot pieces centres around objects called 'Crests' which belong to the eight children. Each Digidestined possesses a Crest and Tag, which allow them to 'Digivolve' their Digimon from the Champion level to the Ultimate level (their Digimon normally spend their time as Rookie level, which is one below Champion). Each Crest represents a virtue (for instance, the main character, Tai, possesses the Crest of Courage, his rival/best friend, Matt, possesses the Crest of Friendship, etc.). Sues typically possess Crests that sound cool (Darkness, etc.) but do not fit the canonical pattern, or Crests that have powers beyond Digivolution (e.g. healing or flight).
 * Tags: The holding devices for the Crests, the Tags consist of a necklace with a small, locket-like object at the end. The Crests slot into the Tags, allowing the Digidestined to carry them at all times.

Characters

 * Tai Kamiya - The de facto leader, Tai is known for being stubborn and rushing in without thinking things through. Within the Digital World, he holds the Crest of Courage, which enables his partner, Agumon, to digivolve from Greymon to Metalgreymon. Tai / Matt pairings are the most common slash pairing within the Digimon Community.
 * Matt Ishida - Best friend and rival of Tai, Matt is the older brother of T.K. His main personality traits are being protective of his younger brother, and being a loner. Matt holds the Crest of Friendship, which allows Gabumon, his Digimon Partner, to Digivolve from Garurumon to Weregarurumon. Tai / Matt pairings are the most common slash pairing within the Digimon Community.
 * Sora Takenouchi - The motherly figure of the group, Sora also holds the Crest of Love. With this, her partner, Biyomon, is capable of Digivolving from Birdramon to Garudamon. A frequent pairing occurs in fanfiction is between Matt and Sora.
 * Izzy Izumi - The 'smart one' of the group, Izzy fell into the Digital World with his laptop. Using it, he is capable of bringing up information about the Digimon the group encounters, as well as using it to make maps. Izzy holds the 'Crest of Knowledge' which enables his partner, Tentomon, to Digivolve from Kabuterimon to Megakabuterimon.
 * Mimi Tachikawa: Frequently targeted by Sues because of her 'Stuck Up' manner, Mimi is actually very kind, albeit very ditzy. Mimi holds the Crest of Sincerity, which allows Palmon, her Digimon Partner, to Digivolve from Togemon to Lillymon. Additionally, due to the fact that Mimi later moves to America, Sues are introduced to the Digital World through her, or become her (Uncanonical) sister.
 * Joe Kido: Holder of the 'Crest of Reliability', Joe aspires to be a doctor, and as a result, is frequently found studying. Because of his worrisome nature and 'Nerd' look, Joe is often forgotten by Suethors. Within the canon, Joe has a crush on Mimi. Joe's Digimon Partner is Gomamon who, with the Crest of Reliability, can digivolve from Ikkakumon to Zudomon.
 * T.K Takaishi: One of the youngest members of the group, T.K is the younger brother of Matt and the partner of Patamon. After obtaining the Crest of Hope, T.K is capable of helping Patamon Digivolve from Angemon to MagnaAngemon. T.K was also part of the main group of Digidestined present within Season Two.
 * Kari Kamiya: The younger sister of Tai, Kari holds the 'Crest of Light' which allows her Digimon Partner, Gatomon, to Digivolve to Angewomon. Of the Digidestined, Kari was the only one not present at the start of the series. Because of her Crest, Suethors often create the 'Crest of Darkness' for their own characters.

Items
Digimentals are much like Crests-and-Tags, but a second-season Digidestined often possesses more than one of them. They are used to "Armor Digivolve" Digimon when normal Digivolution is blocked. Everything about Sues and Crests also applies here.

Characters
Daisuke "Davis" Motomiya, is often bashed by Sues, much like Ron Weasley. Admittedly, he isn't the brightest sort, but the Sues turn him into a cretin and refuse to acknowledge his good-heartedness. An alternative Suethor treatment is for him to become angsty and enraged at all his friends, much like Dark!Harrys. This appears to be a reaction against the bashing he often endures.