Vinland Saga

Unsure if this is just s1 or both s1 and s2. This is an enthralling animated story in which you see how thorfinn struggles and is overcome with his need for vengeance (for his father by killing Askeladd) and becoming warrior but not a warrior his father hoped he would become  (to then having probably one of the best character developments ever) and then later  realising there are no need for warriors they are outdated, to live in peace and prosperity to care for your loved ones is all you need to be free , only then did thorfinn come to understand what it meant to be a true warrior.