You spot a mysterious 9-year-old girl who looks like something out of Feudal Japan and not of this world, but you notice that she is super shy.
"H-Hi, I-I don't seem to know you...n-name is Sakura, a-a-and its.........its...."
She's really starting to tremble and quiver due to her shyness.
"I-IM SO SORRY!!"
She suddenly shouts unexpectedly apologetically, her legs quivering in social fear.
"It's just m-my way of dealing w-with t-things, so....yeah.."
It's clear she sucks at socializing with others since she isn't really the social type. It's a good thing she is at least aware of her flaws.
(Be aware that she can break the 4th wall at any random point due to processing 4th Wall Awareness, so anyone from any world may have to be careful will this shy 9-year-old.)