The king of the ice wall (Game Of thrones)

Moving into the world of "Game of Thrones" or "A Song of Ice and Fire," what should one do? Form a harem? Compete for the throne? Become a farmer? The unfortunate Aeg had no choice, because from the beginning he was captured as a recruit by the Night's Watch. I'm translating this, credits to the original author: 绝境长城上的王者 作者：点爷01