Why would that old man request a different mercenary when he clearly heard that the only C-rank mercenary in that territory is Ketal? C-rank is actually considered pretty high. And besides, mercenary ranks aren’t determined purely by strength, they’re based on how many requests/jobs they’ve completed and how dangerous those jobs usually are.
Also, if the old man knew that Ketal is a Barbarian, shouldn’t he have logically concluded that Ketal is the most suitable one for this job? Barbarians are strong, and even though they’re stereotyped as a “stupid” race, Ketal still managed to reach C-rank, which already proves his competence.
The old man seems to be a bodyguard, and the woman is definitely a princess. So.... how can their reasoning skills be this bad....