[Kurogiri nods, understanding. He had tended to keep to the shadows himself throughout operations, to the point that few had been aware of his existence as a villain, until he had appeared by Shigaraki's side.]

Yes, he ruled over the people of Visium, including the Dreamers. We had no access to Lumindeas at that time.

There are many things that are still unclear about him. Near the end, he asked people to give up their returned Quirks and other abilities to provide him with additional power. Many Dreamers did not, and so he lacked enough power to fend off whatever caused the proliferation of the crystals. He did protect the town and people, however, so we survived, but he apparently lost his life in the process.

Of course, I don't believe anything I'm told without being presented with evidence, and I don't know what it means for a being like that to "die".