In the original timeline, Yulia's death was related to the Noble Red. And the Noble Red is a subordinate organization of the Rose Cross Society, which follows the command of Anna Sprengel—Anna Sprengel is the secret apostle of the Serpent Celestial Marshal.
Before that, Anna Sprengel was also the person who created James. After James adopted Yulia, the medicine he bought to delay the outbreak of the Phantom Demon Egg was also obtained through Anna's means.
In other words, the Serpent Celestial Marshal had always been paying attention to Yulia.
Under such circumstances of death... Aiwass couldn't regard it as a mere accident.
It could only be a conspiracy.
Yulia might have been used as a surrogate for the Candle Master—the Defiant Flame Butterfly is highly likely to have been cultivated by the Serpent Celestial Marshal to burn the Sin Thorn, as a substitute for the Candle Master!