"Expected" Development

"According to Mr. Door, the main difference between the second Blasphemy Slate and the first Blasphemy Slate isn't that the latter has many unique Sequence names, but that the former had many additions. It was a secret the Ancient Sun God caught a glimpse of towards 'His' later years. Alright, as a true god, there's no such thing as later years. I'm just using the human concept of the period from 'His' birth to fall, so that would be considered 'His' later years.

"In other words, the second Blasphemy Slate's creator was the Ancient Sun God?"

"Towards this question, Mr. Door answered with almost certainty. 'He' told me that the Ancient Sun God's fall resulted in the birth of the Blasphemy Slate.

"Does that mean that it's considered a key relic of the Ancient Sun God?