Amane Yukinaga

Amane Yukinaga is a Japanese holy man, mystic and philosopher who, with his elder brother Konishi, brought many teachings unto Victor Moore to train him as a better warrior and find out the truth of his existence and fate. Amane was unarguably closer to Victor during his five year long stay in Japan, letting him on to the story of William Adams and the founding of both Cybertheism and the Chasm.

Fate
In the recorded message left by Amane which detailed how Victor could obtain "Apotheosis: A Guide For The Worthy", he hinted at the fact that the "coming darkness" of Nuit Infinie drove his brother insane, to the point of suicide, and that it wouldn't be long until he went insane as well. As Victor and Garrett left the temple, an enraged, fast Amane ran at them, attempting to take Victor's life. They left after Victor defeated Amane. After looking into things, Victor found out something that Amane nor Konishi mentioned during his five years of training: they both suffered from Fumetsu. This left Victor under the impression that he himself would eventually go insane, and made him more absolute in sacrificing himself.