This is an ongoing activity and you can keep challenging the fisherman forever for more fights.
The Uzhitz fisherman organizes prize fights.
- Beat Josef
- Beat Maple
- Beat Mash
- Beat the fisherman
- More fights...
After speaking to the fisherman, head back to Uzhitz and approach the three fighters, Josef, Maple and Mash (jn that order, preferably). Bet them 5 and engage in a brawl. If you win, you'll forfeit the 5 , but if you win, you'll get 10 .
Once you've beaten all three, go back to the Fisherman and bet 10 . Once you beat him, you'll win 20, and the skill-book Agile as a Weasel I. You can return at any time to challenge the fisherman to a brawl, either for a quick bit of cash or to develop your skills.