The Adventures of wicked and Isabelle becoming a overlord

This book is about a boy named wicked. And his sisters Isabel, both of them, goes on all these adventures through life, learning themselves in the worlds around them. Only to discover what they didn't. Have to do end up coming? What they would have to do, they go on a lot of journeys during this adventure. They grow, they separate. Then get back together, but at the end of the day, they always know the most important thing is their family