First thing you should do is to create proper tokens for Kagami. You need to login onto twitter as account you want to Kagami use in process of monitoring. Then to generate all needed tokens/secrets you need to got https://apps.twitter.com/app/ then click
[Create_New_App]. After you agree to terms and click
[Create_your_Twitter_Application] you will see all 4 needed tokens/keys/secrets for Kagami.
Running Kagami for first time you will be asked for few things:
consumer_key, consumer_secret, access_token, access_secret which you will find on apps page where you created twitter application.
download_path is path in which kagami will download media from tweets
download_disk is amount of storage in GB that are minimum amount of storage needed to kagami download media