Steve

"'I have seen past the farthest star, and I have gone to the edges of the galaxy, and I can take you there. If you so choose. I can give you all the things you ever knew you wanted and more, taste from the tallest chalice, dine at the largest halls; And all I ask in return is your soul.'"The creature which the party ended up calling "Steve" was a dark aberration from an unknown void. Initially possessing Vash while the crew traveled through space while in its weakened form, it was given a true place in his soul when a contract between it and Vash was formed during a fight with another way-creature. Vash would give himself over to it wholly in exchange for power and knowledge, a typical dark pact between monsters and men.

Through its travels with Vash and the crew it grew in strength, an initial burst of power from consuming Way creatures defeated by the crew, it flooded Vash's mind with images and plans for a grand device, a Way Bridge, which it called upon him to build for it.

Halfway through it's unknowable plans, Steve met with M, another otherworldly creature, and was called out to fight. Revealed, and with Vash's death, it destroyed M and fled before others could arrive and contain it.

Status: Unknown, Missing.