I was curious to see if they'd clarify some of the deeper lore aspects of Ghost, in this comic, but they've stayed clear of too-definitive-answers. It was an alright read, aimed for Ghost fans, disjointed to newcomers.
Not much about the origin of The Clergy is explained : the comic seems to let on that Sister Imperator was the founder of the Ghost band, but where does the Clergy fits in? In the web series, Papa Nihil say his father and his father's father, and his father's father's father (etc.) were Papa before him, so then why would Sister Imperator be the one to introduce him to this philosophy?
Overall, just a fun read about Sister Imperator being cool and tortured.