A formidable feeling

With Luffy's rise as Pirate King, the world entered a New Era. It changed in the beginning and continued to change over time. Brick by brick, step by step, route by route.
And it's a mysterious new route that Luffy and Uta decide to take, facing the most complex adventure of all. Sailing in the ocean of parenthood, and trying to figure out what makes the deepest strength that a parent can bring out "formidable".
But the Pirates Era is not the best setting to raise a child, much less gives ideal figures to take example from... it will need the strongest of wills to determine if they will surf the waves or crash into them.