This song is sung by Hatsune Miku and Kagamine Rin&Len. In the Edo period (the period when there were Samurai and Shinobi in Japan), Miku, Rin and Len, their drama starts! Now, the special wallpapers are distributed.This song and PV constructs a completely original world. Samurai, Katana(Samurai’s sword), Shinobi(Ninja) and so on are appearing in the story. And the PV has very beautiful brilliance of dusk that draws old Japanese landscape. Japanese-style penetrates their clothing, goods and colored leaves.
Rin: She who was about to be sold into bondage was saved by her lover Len. But she lost him on the way to elopement. She never give up searching for him. She runs after him even in case of the other side of the moon.
Miku: She help Rin to search for Len. She is a girl who has a lot of secrets. She is a skilled Shinobi(Ninja). So her body has been rolled with the bandage.
Len: He was originally a lover of Rin. But he disappeared taking advantage of a certain event. He has a mysterious sword Ayasaki. The name “Ayasaki” has 2 means. The 1st is that the blade shows the prismatic colors as rainbow. The 2nd is that the sword is fond of killing people.
The official website for this song “Knife“ is opened. You can get the special wallpapers on the official website at Special.