Dottoscara

Dottoscara is the slash ship between Dottore and Scaramouche from the Genshin Impact fandom.

Canon
Dottore and Scaramouche have met for the first time around 400 years prior to the start of the game at the Tatarasuna Furnace, Inazuma. At the time, however, Dottore was disguised as an engineer, Escher, and Scaramouche went by the name Kabukimono.

Kabukimono lived with the workers at the Tatarasuna Furnace, and was especially close with Niwa. In his disguise, Dottore infiltrated the group of workers and caused an enviromental disaster at the Furnace, and killed Niwa before he could oppose him. Unaware of the cause of Niwa's disappearance, Kabukimono assumed that he was abandoned once again, and when Dottore offered him Niwa's heart he discarded it and left Tatarasuna, without ever knowing of "Escher's" true identity until years later.

They met again once Scaramouche had been recruited by Pierro to become a Fatui Harbinger, and became coworkers. According to Wanderer's Character Story 5, Dottore experimented extensively on him, always pushing his limits and torturing him. During the Sumeru Interlude Archon Quest, Signora comments that Scaramouche has such a high ranking in the Harbinger only because of hou much abuse he's able to endure.

After obtaining the Electro Gnosis from Yae Miko in Inazuma, Scaramouche disappeared for a time, and reunited later on with Dottore in Sumeru. The two worked together to create a new artificial god, Shouki no Kami, using Scaramouche and the Electro Gnosis as a power source for the body. The event caused immense pain to Scaramouche, who endured it because of his own obsession with godhood. Dottore and Scaramouche, however, are never seen interacting directly in none of the five Sumeru Archon Quests.

In the following Interlude Quest the player follows Scaramouche, who will later adopt the title of Wanderer, as he discovers the truth of the Tatarasuna Incident that traumatized him centuries ago. As of patch 3.3, he's sworn revenge on Dottore for all the psychological and physical pain he's put him through.

Fanon
Dottoscara is a rather controversial and unpopular ship in the fandom, as it involves two very divisive characters. However, most shippers do not consider the two to have a healthy romance, and are drawn to it because of its dark nature. Often the shippers joke about the Sumeru Archon Quests being the two's "divorce arc".

It currently has 220+ works on AO3.

Fandom
Il Dottore/Scaramouche tag on AO3

dottoscara hashtag on Twitter

Trivia

 * According to Wanderer's Character Story 4, Scaramouche's puppet body served as a source of inspiration for the creation of Dottore's segments.
 * In Wanderer's voiceline About: The Doctor he laments the destruction of Dottore's segments, as he wishes he could slice them apart himself.