Shadaria

Shadaria is the het ship between Shadow the Hedgehog and Maria Robotnik from the Sonic the Hedgehog series.

Canon
Shadow is a creature that was created to help make a cure for Maria's fatal illness. The two of them were raised alongside each other onboard the ARK, they formed a very close bond and were like siblings to each other. Maria is, is by far the one person that made Shadow the happiest, and they shared the same dream; to visit Earth.

Unfortunately, Maria was shot and killed by G.U.N, due to they deemed Project Shadow to be too big a threat to the world, so they eliminated everything they could in relation to the project, including the people. Her last parting words were "Sayonara, Shadow the Hedgehog," Shadow still stays strong to keep his promise to her no matter what and mourned her death.

Fanon
This ship is one of the most popular ships for Shadow along with Shadouge. A common fanfiction storyline for this pairing is a story were Maria is brought back to life as a hedgehog.

Tumblr

 * shadaria tag on Tumblr

AO3

 * Maria Robotnik/Shadow the Hedgehog tag on Archive of Our Own

deviantART

 * shadaria tag on deviantART
 * mariaXshadow-fanclub fanclub on deviantART