Sanguine Sword

The «Darkness Blade» skill was one of ten featured in.

Unlocking
The prerequisite required to unlock the «Darkness Blade» was tied to the beta test of the game. The recipient was the beta tester who successfully committed the most PK's in the beta test. This requisite was fulfilled by Kenji Hiroshi, active under the player-name «Kishi», who was known as the Reaper during the beta.

Behind the scenes

 * It was stated in an interview with Reki Kawahara that «Darkness Blade» was to be granted to the player who committed the most PK's. For the purposes of feasible use the author opted to retain this requirement but added that the killing needed to be performed in the beta.