Ten Lives, Nine Reincarnations
Before his reincarnation, Di Tian foretold that there might some accident. So, he prepared beforehand. He left secret realms full of innate treasures, Innate Demon Gods and Emperor Bloods, and even a few chaos treasures to recuperate.
To acquire all these things, he had to use all the merits he achieved for the human race during the war. And as he expected, an accident did occur. When he finally reincarnated, it was already after the Null Era, when the war ended.
Although sad that everyone he knew was either dead or gone, he still continued forward as he had a mission to fulfill: become a Great Emperor to revive his beloved wife, Ning'er.
Using the things he left behind, he quickly cultivated to a realm similar to True Monarchs. Although the environment then had changed making it difficult for the ancient cultivation system to flourish, he did not have this problem with the resources in his hand.