Warning: The player played the game live, but downloaded the parallel world module. The parallel world includes operations such as blade design, reversal of knife type, conversion to dark fall, etc. The player's account most likely doesn't have any fancy activities, but the parallel world has an extremely large amount of fancy activities.
I write purely for my own entertainment, OOC warning! The swordsmen actually wrote it before they even understood it all. (Yes, I am a guy who is good at food and loves to write)
Concept: What about parallel worlds?