Quite the interesting series to start. It seems there is a connection between the city, the hole, and these doors where these sorcerers are from. The first thing is we have Caiman, who has the appearance of a reptile. Though the most interesting thing is that he is immune to the magic of sorcerers. Curious what that is about. It is clear that magic is quite the powerful tool.
Though there is a group even after whoever the sorcerer is because it is something much more advanced. Curious how things proceed from here.