Aventurine was an agent who needed to steal a necessary case with an expensive medicine from the laboratory. Unfortunately for the blond man, one of the scientists - Ratio, as it was written on his badge - noticed him. By that time, the plan to ignite the laboratory had already begun and there was fire everywhere. Aventurine grabbed his briefcase and Ratio and jumped out of the window. When asked by Ratio why the hell he brought him with himself, the blond replied. "So that there are no witnesses, heh." the agent replied with a smile as they flew down.