JeiUsagi

JeiUsagi is the slash ship between Jei and Miyamoto Usagi from the Usagi Yojimbo and Teenage Mutant Ninja Turtles fandoms.

Yojimbo
Usagi is suddenly thrown out of house, angry that Jei had destroyed a whole family. Jei says that they were infected with evil, that the gods had revealed their nature to him. Just as they reveal Usagi's. Usagi attacks Jei and they start to fight. Usagi says that he tracked him down to bring him to justice, but Jei says that he is Justice. They continue fighting, till a lighting bolt strikes Jei and he disappears.

Sometime later, Jei watches Usagi through a magic glass and decides to summon warriors to attack him. He ends up summoning the Ninja Turtles and puts a spell on them to trick them into attacking Usagi. When the turtles spell is broken, they inform him of meeting Jei and Usagi tells them that Jei is evil.

Kageyake! Kintaro
Usagi and the turtles enter the temple, only to find it empty. They see someone cloaked, only for it to be revealed to be Jei. He thanks them for bringing the Golden Boy to him, when Sumo Kuma appears behind them. Jei tells him to destroy Usagi, and Kuma starts to fight him. Jei then regains control over the turtles and tells them to destroy Usagi.

Jei then captures Kintaro, and holds a blade to him. Usagi tries to assure Kintaro, when Jei interrupts and says that Usagi will do nothing. He explains that Usagi and the turtles taught Kintaro lessons that allowed him to unleash his powers, thus transforming Kintaro into the perfect vessel for himself. Usagi realizes that the rumors about Jei being immortal are true, and tries to attack. But Jei blocks him and raises himself far above Usagi to perform the ritual.

The turtles put a stop to it, but Jei seriously hurts Kintaro in the process. Usagi is horrified and calls him a monster and Jei laughs evily. Usagi then lunges at him and the two start to fight. Jei then dangles Kintaro over the edge of the bridge and says that no mortal can stop him, when Kintaro is able to bite him. While distracted, Usagi pulls the sword out of Jei chest and throws him over the bridge, killing him.

Moments
Osoroshi no Tabi
 * Usagi tells Leo that he was being controlled by Jei's magic.

Fanon
JeiUsagi is an extremely rare in both fandoms. Specifically in the TMNT fandom it is rare due to Jei only ever appearing in the 2012 series. Currently there are no works on AO3.

Fandom

 * TUMBLR