Veiled in Shadows and Brimstone

Charlie and Alastor had been ruling over Hell for five years now, their reign bringing a sense of stability and prosperity to the underworld. They had six beautiful children, their eldest daughter Liliana was now 12 years old, the twins Aurora and Alarik were 8 years old, and their youngest triplets Noelle, Damien, and Nicholas were just toddlers.

Life seemed perfect in the dark realm, with the royal family enjoying their time together and the subjects of Hell living in relative peace. However, not everything was as it seemed. A shadow loomed over the kingdom, threatening to shatter the tranquility that the King and Queen had worked so hard to maintain.

An angel, believed to be long dead since the brutal War for Hell's souls ten years ago, and a mysterious red demoness shows up making the King of Hell on edge, emerges from the veil of shadows.

What is Alastor hiding, who is the angel, and who is the mysterious red demoness?