Naturally, the resources to make Soul Break Pill were hard and only found in the trial of Azure Shard Moon's secret realm which opens every decade and was going to open again three days later.
The Empire had acquired resources from there three decades ago when Rias's father and mother went inside as a talented younger generation of that time, but no allowed participant was in Exceed-rank at that time, making it easier when compared to the upcoming Azure Shard Moon trial.
The matter regarding this trial was also handled by Rias and Kadita, the principal of Lightdusk Academy since the Goddess Church was no longer operative.
…
Half an hour later, Rias and Roxen finished their breakthrough to Primeval-rank by awakening their soul.
Rias acquired 96k Soul Potency right off the bat according to her potential. If she naturally awakened, she would have surely gotten a 100k bonus.