I'm a native British English speaker, happy to help out on short scripts, maybe longer works depending on my availability and interest in the project. I can offer general proofreading, and I can also edit your English to sound realistically British if you're writing a British character, setting a story in England etc. Bear in mind I'm from a middle-class background in the south east, so if you're looking for specific regional dialects outside of this, I'm not going to be an expert there.
I also speak Japanese. I'm happy to translate Japanese-to-English for short pieces of text only. I may accept small amounts of English-to-Japanese, but I'm not a native speaker, so I can't guarantee it will sound completely natural.
