Mirror of the Underworld Episode 5

Rocked by the truth of his dearest friend's fate, Ki is overcome by nightmares that leave him unconscious and could prevent him from ever awakening again. Keika, the only one who can save him, dives into Ki's memories to try and free him from the nightmares. Silently, Keika watches from the sidelines as he relives Ki's memories from before he knew him to see just what in his past is preventing Ki from moving forward. As his bodyguard, Shinryuu Shouken spent a great deal of time with Ki, but what were his true motives?