Hi. I´m American, a native English speaker with excellent language skills and years of experience editing texts for non-native speakers. I can edit 500 words in 1 day for 1000 JPY, but to get that price you need to open another project with a lower price range and then communicate with me. This is not a discount price, or a scam, my basic price is $4 USD per 400 words. For this price, I correct Englisg grammar, spelling, punctuation, vocabulary, sentence structure, general layout, articulation and clarity of expression. I have written and edited many business texts, and I would be glad to sign the NDA. I hope you contact me - you will be pleased with the quality of my service. Regards, David