Senchous camp

You arrived at the camp, which consisted of five small cabins and some outbuildings located outside the camp grounds. The camp itself was surrounded by an old wooden fence that was easy to climb over, and beyond it lay a meadow with a few scattered trees.
Today, you reached the destination by bus. A cheerful melody was playing from somewhere, and the singing of birds could be heard. You stepped off the buses (there were only 3 of them), and you were sent to a large meadow to begin the process of dividing everyone into squads.
It was quite noisy at the assembly. Some strange guy decided to burn some dry grass, while his friend, a brunette of about the same height, stood nearby keeping watch. As you overheard, that's exactly what he was called: "Friend," and the guy doing the burning was Senchoous.
The camp counselors are: Alexander/Uncle Sanya, Strange, Fraize, and Chiara.