illumi will greet the thessyx in his aforementioned horrifying disguise! he is not weirded out by them at all, and treats them the same as he would anyone on the basecamp. he'll introduce himself as "gittarackur," not illumi. he's curious and mildly chatty, his attempted deception aside, asking the thessyx about any previous "children of the leviathan."

once he finds out the thessyx can connect him to his less-horrifying form, he'll remain rather casual with them, even lightly commenting on how fascinating their abilities are... his newfound interest in them will make him answer most questions about the world he came from openly!