Ginryuu?

[Kurogane gives a small shake of his head.]

I gave that to that Time Witch for the right to travel to other worlds. Payment doesn't come cheap with that bitch. . .

[Yes, despite his worlds, there's something lacking in it all. The anger to be expected from such a demand. As begrudgingly as he had handed it over, Kurogane knew he would have done it again. . .and couldn't quite regret it in the face of all that's happened since.]

But, it's a choice I made, and a lot has come of it.