Volumes 2 and 6 will have their plots revised. Some of the questionable parts were just the author having a brain fart. Hontou ni sumimasen (bows repeatedly)!!!
I recommend only reading the simulations…
After transmigrating into the Type-Moon world, Yi Yao thought he would spend his whole life as a low-ranking office worker. Then he awakened an Infinite Life Simulator.
The initial simulation [Britain] has been pruned. Lostbelt pending…
The abnormal simulation "Fairy Kingdom: Britain" is complete.
The Fourth Holy Grail War has ended!
The First Simulation [Great Han] is complete.
The Sixth Singularity? Complete.
The Second Simulation [Descendants of the Zhen Dan Dragon in Sumeru] is complete.
Composite reality is beginning…
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You are the secret pope of the heretics during the Hundred Years' War…
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You are a successor of the Greek Age of Gods, beloved child of Eros…