A few minutes after Manato left the scene, someone arrived on the scene where the former subdued the men who are the cause of the Aether forming. The first thing he did was check the unconscious men's pulse, and after sensing that no one is dead, the guy sighed in relief and started taking notes. He stood up after checking up on the men and checked around the surroundings. Aside from the obvious little crater that is present on the ground and some slight blood stains, there are also burn marks on the walls and ground but there are no signs of things being burned there.
He also checked the pockets of the men and didn't find anything aside from cigarettes but without a lighter to light it up, it's even impossible to create these marks.