In the stifling darkness of the Extended detention center known as the Weapons Vault, Juzo and Mary come face-to-face with their own pasts. They went in looking for a way to repair Juzo, but Mary also wants to find out what happened to her brother Victor. Deep inside the vault, they encounter Number Twelve, a GSU that Juzo thought he had destroyed. The forgotten knowledge he possesses may give Juzo the strength and purpose to continue his struggle against Berühren.
story and art by Tasuku Karasuma.