This technique is a refined version of the Kuriageru technique of Burikka that is considered to be the "most beautiful technique of Kenbu Hataya thus earning it its name.
Elegance is similar to Phantom Mirage, requiring a split-second usage of Burikka to greatly increase speed. It is an offensive technique as it involves stepping forward, slipping past an opponent's side, and then moving behind them in order to strike. The proximity of the after-image is such that it appears as if the user had slipped through opponent's body.
The difference between the two techniques lies in the very nature of their usage Phantom Mirage is used to get some distance from opponent while Elegance is used to get in close. Though the speed of both techniques is roughly the same, the precision of Elegance's movements is on an entirely different level.