As for the game itself, I encountered Kir, defeated all the Gremlins on the first day, and Naga (which the quick attack on the castle didn’t eliminate, but I thought I “could do better”©). On the seventh day, while chasing a gem-containing artifact, I didn’t manage to collect a treasure chest and ended up with Naga in the castle, having 4.7k gold!
Two consecutive losses (2-4), I checked both 3-4 and didn’t risk taking them on the second week. On the third week, the opponent showed the way to their castle, and on the fourth week, they cleverly fled into the darkness, allowing me to catch both the opponent’s army on the road and the opponent himself while they were moving.