Ace’s real name is unknown. Every record of his birth was wiped clean, scrubbed from the system as if he had never existed at all. He was brought to the Underground by Sera, a kindred soul who, over time, became family to Kael and Caligo. Sera warned them not to dig too deep. She said Ace was a gentle spirit with a past sharp enough to reopen old wounds, and that searching for the truth would only hurt him further. They listened.

Ace filled the silence immediately. Reckless and impossible to ignore, he pushed boundaries because standing still felt suffocating. But within all that dizzying movement, Hikari saw something more: the same defiance Caligo once carried, before it hardened into a quiet storm. As the Underground took shape, Hikari fortified its walls and systems. In parallel, he built tools for Ace: graffiti cans wired with experimental tech, capable of geo-tracking movement, disrupting Iron Paw systems, and turning expression into interference. Ace never knew who he was, but he always knew how to be seen. In the Underground, expression became his weapon, proof that erasure doesn’t always work.