Kicked out of the yuusha party... would often be an immediate strike against something. But, it's not doing the usual MC underestimating his ability. In fact the kicked out here is more realistic and makes sense more than any other example I've seen with it being a dickhead guild leader who seems to be annoyed with the support stealing his thunder so he uses his position as the main tank to bully the rest of the party into not saying anything. And the kicking out is more resolved by the MC having ambitions other than being in the hero party so having made enough during their travels he's already prepared to move on with life. This way of letting go combined with the fact he and others in the party understand his ability makes me think it'll possibly avoid treading the same common cliches you see in every single one of these normally where it's meant to be revenge-porn or "I'LL SHOW THEM" wank.

Also in addition to all this the daughter-slave he picked up seems pretty cute so it'll be a nice balance after Takopii to see girls getting saved instead of bullied.