This creepy cute commercial for razor blades designed for cutting wrists appears in the movie Tokyo Gore Police, directed by Yoshihiro Nishimura. Over at io9, Annalee Newitz has published a great interview with Nishimura, which includes this explanation of why he is obsessed with girls who cut themselves:
I think wrist cutting is cool. The people who do wrist cutting don’t want to die. They are the people who want to live more than the others, and these cuts become a performance, a kind of theater.