You call this the mastermind?

Novel Summary

Civilizations change, and the era restarts. The world that has returned to the age of steel and steam is full of chaos, madness, distortion and evil. Among them, a group of wizards called the Truth Cults have done all kinds of bad things. They sacrificed evil gods, beat up the Pope, assassinated the emperor, and even provoked the First World War... All this had nothing to do with the time traveler Mellen. When the world fell into turmoil, he was the one who squatted aside and watched the show. Until one day, this group of people came to him and insisted on recognizing him as their leader, saying that he was the son of destiny, and everything they did before was because they followed his instructions...

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