For others interested, I paid one month key-money, no deposit and half a month to the rental agent. I probably could have negotiated more but was eager to move

For others interested, I paid one month key-money, no deposit and half a month to the rental agent. I probably could have negotiated more but was eager to move in quickly. After getting my first gas bill the last payment on the account for that unit was two years ago so the apartment was probably empty since that time. I'm not in Tokyo though.