Board Thread:General Discussion/@comment-26965399-20160928003947/@comment-4698889-20170215214438

There's Allen for one. He's was in Black Box until the world's end, so the akashic recorder (which gives quantitative information) presumably told him Gallerian had contracted with the Demon of Greed. There's also Gumillia in Gallerian's dream at the end of the Pierrot novel, who calls him "bound by the Demon of Greed".