Rinku smiles, nodding along at Eren's explanation. She lets Mecchan climb down from her shoulder and holds him in her hands, where he looks curiously at Yamask and blows a nervous little bubble.

"Wow, really? Did you find Yamask-chan in another world? If you were both lost and away from the worlds you came from, then maybe it was fate for you to be friends!"

She nods. That makes sense to her!