Purple Ink does not exist in this lab, does it?
--No, Sensei!
Blue Ink does not exist in this lab, does it?
--No, Sensei!
Red Ink does not exist in this lab, does it?
--No, Sensei! Prepare! What do we study here?
--The way of the black ink, sir!
And what is that way?
--Black ink first, black ink only, no mercy, sir!
I can't hear you!
--Black ink first, black ink only, no mercy, sir!