Makes sense. All this farming and development of new land is going to be the foundation for Thorfinn when he ends up living a peaceful life, although I think most of the people reading this are more interested in war and conflict.

The first part ended with text saying that it was the end of the prologue, so Thorfinn appearing as a slave is actually the start of the story.

Imagine if Vinland Saga started out from that point... it'd suffer from lack of popularity and get axed before anything interesting happened :P