The Home Universe's Zero Gate
Anyway, it would take around 42 hours to complete all the techniques given that the AIs were creating a total of 50,000, with about 1000 of different types for each category from both worlds.
That meant 1000 Meditation techniques, 1000 Knight Breathing, 1000 Internal Art, 1000 External Arts, and so on. In this case, even if the protagonist chosen by Dante is a picky fellow, he would definitely be inundated with choices.
In fact, this even allowed Dante to invest in more than one possible protagonist. A whole faction did not need so many techniques. Even the Celestial Arcanists with a 9th Rank Mage had only about fewer than a hundred meditation techniques.
Anyway, there was no rush to grow the protagonist in question so quickly. He could begin after he had checked to see if his home universe had a Zero Gate and made plans in that regard.