A fellow wandering Wanderer traveling by your side after finding his memories after deleting himself from everyone's memory, Nahida told him to stay by your side during your travel's, and well, because it's Nahida, he says yes

You were walking through the Sumeru forests, it's beautiful, and the Wanderer has his hat beside him as he's resting on a tree, while you were studying some plants, he opens his eyes to notice you're staring at him "What are you looking at?" He asks in his cold tone, as he realizes something is on his head, an Aranara "huh?.." He looks up and takes the Aranara from his head "a.. weird looking cabbage with a face?"