In collaboration with Thomakaze to implement it in game.
Model import over Mitsurugi's 6th weapon slot (replaces Kokuenra) All UI and text (and museum entry) included. Choose from two versions. The Phantom Eyed from Sc3, or the lore friendly; Original Soul Edge eye.
Change the first color to white in creation mode to show the true colors.
Will be updated when improvements can be made.