The 13 demonic gods fell toward the source of the universe concurrently. It was impossible for even demonic gods to endlessly take up the timelines.
As they continued to head toward the source of the multivariate universe's timelines, the time frame in which they existed also kept on moving forward.
Unknowingly, the demonic gods' powers started to disappear from the current multivariate universe.
Then space-time changed, and in everyone's memories, the demonic gods' powers had already disappeared for 100 years.
After that, it was 1,000 years... 10,000 years...
As the demonic gods continued to fall, the memories of the demonic gods—that the many lives in the multivariate universe had—became increasingly distant. This continued until the demonic gods gradually disappeared from everyone's memories, with only a bit of them left existing in the records of ancient civilizations. However, those also disappeared without a trace very quickly.
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