So... the author's just going to gloss over the fact that she can somehow understand him after they specifically mentioned that neither MC nor ghost-chan can speak her language?
@seekermoc She seems to be getting most of her understanding from body language and voice tone context. Note that she seems to get simple sentences and commands, but she doesn't understand Reiji's speech at the end.
I'm the child of foreigners, but can only fluently speak English, so that's more or less how I wing it when a conversation with my parent's native language occurs.
I wonder where Himelda came from. Tan skin, can't speak English as well. Came to a different country to help the family. Gut feeling says she's from the Philippines.