After the first murder, Shiki's uncle, Director Shindou, is killed as well. The lab is in an uproar. To find out who the killer is, Nishinosono and Saikawa investigate Shiki's room. There they find a robot named Michiru, and a strange message saying "Everything becomes F."
but it can't open it.
.ولكنه لا يستطيع فتحه
aber er kann sie selbst
nicht öffnen oder schließen.
pero no puede abrirla.
pero no puede abrirla.
mais pas la porte elle-même.
mas não consegue abrir 
ou fechar a porta, de fato.