Zen and Arata embark on a hopeful journey together, but someone from the past disrupts their path and attempts to erase their memories. And when Zen lost his true self and was being controlled by Acheron, will Arata save him?
Phase 01: Return to the Untold Past
Phase 02: Once the Fear Erodes
Phase 03: Abyssal of Subconscious Mind
Phase 04: Transcend the Void Power
Phase f: Eternal Relationship
