Hey guys, the old man is innocent. I saw him at Electrical doing wires. He's good.
But seriously though, Mamari looked 100% the bad guy last chapter, and now we see that she might not be that evil.
The author might pull that off again with the old man next chapter, and twist our ankles with "It's the mayor all along" bs. Mamari looked afraid of the mayor too.
Man, I don't know who to trust. It's probably better to trust nobody, especially since this is a setting where the hero is an absolute scumbag.