Looking at VNDB's character page for Shikkoku no Sharnoth ~What a Beautiful Tomorrow~ some of the characters have under their Role section, either "Based on a Real Person" or "Based on a Fictional Person"
Character's like Sherlock and Churchill i…
In Shikkoku no Sharnoth -What a Beautiful Tomorrow-, there are multiple references to a place known as Kadath, in Act 9 - Sharnoth of the Darkest Black there are references to Inganock particularly when Robin Funnel is talking to Howard Phillips…
In Shikkoku no Sharnoth ~What a Beautiful Tomorrow~, some words like Metacreature, Illuminati and Old One have 《 and 》 on either side. you can see them on Part 3-1 of the Web Novel
I feel like this black form is the same as those…
After the credits there is a final flashback of Mary and Charlotte when they were children , they talk about the Shadow Builder and how he hates humans because "when God said 'Let there be light' he went away", Charlotte worries about the existence…
In Shikkoku no Sharnoth -What a Beautiful Tomorrow-, when M goes to "devour" a Metacreature, Mary describes that what is M is using is an equation with some of the patterns being Monumental Kadathian.
In Sekien no Inganock -What a Beautiful People-…