Not actually sure if she is referring to herself or yuu, assuming the former
I'm pretty sure it's the latter, actually. I've never seen someone use 子 to refer to themselves. I think it's more or less the standard "good girl", like いい子 but perhaps less patronizing. I'm going to change it.
You can call me Yuu...Welcome to Japan!Ah... I've heard about her...I'm the... German Navy U-Boat... U-511.Goya is in charge of taking care of her dechi.She's a great kid dechi.Prinz, who is also from your country, is here as w...■ Goya's Return, Part 2Plot: Yuuji
Art: Kouji