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."
About why this happened.
.عن سبب حصول هذا
Wie es dazu gekommen ist.
Quiero saber por qué sucedió.
Quiero saber por qué sucedió.
Pourquoi tout ça arrive.
Perché sia successo tutto questo.
O motivo pras coisas terem
 acabado desse jeito.