Shiki.On the fourth day, Shiki tells Neku about her friend Eri, who helped her design clothes, before the two help some squabbling friends in the Realground that are causing Noise to spawn make up with each other. It is then that they come across a Realground girl who looks identical to Shiki. Shiki reveals the girl to be Eri herself, whose appearance Shiki took on as her fee for the Reapers' Game, theorising that Neku's memories were his entry fee. The next day, the pair are faced with another mission which requires them to make use of a celebrity to get everyone to watch an advertisement for Red Skull pins, which has an unnerving effect on the audience...