Only then did Angel realize with a start that she had forgotten something so important.
No, rather, she had never carefully considered why the Demoness Sect hated female witches. She had simply assumed that Cheek, the Primordial Demoness, wanted to put others through the suffering she herself had endured, forcing every Demoness who advanced to a high rank to experience the same extreme emotions.
It was only after Angel met Roselle on the island deep in the Fog Sea and heard him reveal the secret of Cheek murdering her own daughter that she realized the Primordial Demoness did not merely hate female witches. She feared that allowing them to advance might cause something terrible to happen.
Based on Krismona's account, Angel could now confirm that this change had occurred around the Four Emperors War, perhaps even after the fall of Alistar Tudor, the Blood Emperor. To prevent a female mirror person from appearing, Cheek had even killed her daughter herself, incorporating her remains into the seal on Fourth Epoch Trier, removing her Beyonder characteristic to make a Sealed Artifact, and splitting her residual soul in two so that she could not be resurrected by any means.
Her wariness and fear of the great terror in the Mirror World made the Primordial Demoness use her control over the pathway from its apex to spy on every Demoness's advancement. Only somewhere like the Underground Catacombs, protected and sealed by divine power, could block her scrutiny.
Of course, when Angel reviewed her own advancements, she realized she had never sensed any higher being spying on her. This was most likely thanks to the protection of the Evernight Goddess and Adam, who had been plotting something ever since her transmigration. The several times she had nearly lost control during her advancements might well have