Uliro

Uliro is the slash ship between Shiro and Ulaz from the Voltron: Legendary Defender fandom.

Canon
SHIRO'S ESCAPE

Disguised as a doctor, Ulaz helps Shiro escape. He uploads coordinates of the Blade of Marmora base into Shiro's robotic arm and sends him out in an escape pod back to Earth.

While in a healing pod Shiro remembers Ulaz helping him. Using the coordinates he got from him, Shiro and the team head out to that location. There the ship is intruded by a mysterious person who reveals himself to be Ulaz after recognizing Shiro mid-fight.

Zarkon manages to track the paladins and sends the now Robotic Beast (RoBeast) Prorok to them. Voltron has a hard time keeping the RoBeast at bay. Shiro and team are saved by Ulaz, who sacrifices himself and his ship by crashing into the monster. Shiro is hurt by this lose.

Fanon
Not exactly a rare pair, but a least favorable ship compared to others. Uliro has a small following.

Fandom
AO3

Tumblr

Trivia

 * Ulaz only appears in the episode "Shiro's Escape".