@Qelix also rank doesn't take into account actual strength, you could be S-tier strength but if you just registered you're gonna be f-rank, the guild runs by accomplishments, so that b-rank guy is a freaking idiot who hates MC for no real reason except for the fact that the mc only recently...
@Kuinkwin dumb, arrogant and unreasonable sounds just like entitled people in real life, the more entitled you are the less intelligent you are, so them being like that seems actually so realistic it's scary
@MrMcNasty they explained in a previous chapter, if he freed her people would try to capture her to make her a slave again, it's much safer for her to remain his slave and be treated as free, than be captured and sold to scum all over again