[@Scarlet Angel94], could you please stop with the gratuitous Japanese? As a third-generation Japanese-American, your Super Friends-tier replacement of random words in a sentence with bastardized translations is immensely offensive to me and my parent's language.

If Saya can speak english, make her speak english. If Saya [i]isn't[/i] speaking English, then put her dialogue in [brackets] or <carats> to indicate that she's speaking a separate language. That's what pretty much every writer does when trying to demonstrate that their character is speaking a foreign language, and it's [i]much[/i] less offensive than making it seem like your character has a severe brain disorder.