Sin Treaties: Senran Kagura arc

Note: This will not be part of the series, due to the services it provides. This is a story mostly for fun and laughs and creativity.

Story description: In the modern world the eston's where casual of their lives. They were assigned to a specific job, our beloved protagonist shadow eston found an unconscious girl along the way. A Shinobi she was, What they now realize is she wasn't alone being hunted, something wicked was also hunting them. Now the estons must embark through the shinobi world to fight off the dark forces that desire them. Will the boys survive through this horror, maybe some breasts and beauty?

Fanservice, comedy and masterpiece are a better option.