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."
Chapter Four          The Rainbow-Colored Past
الفصل الرابع                الماضي الملوّن بألوان قوس القزح
4. Kapitel: Eine regenbogenfarbene Vergangenheit
Capítulo 4:                 Pasado arcoíris
Capítulo 4:                 Pasado arcoíris
CHAPITRE 4 – L’ARC-EN-CIEL DU PASSÉ
Capítulo 4       Um passado com as cores do arco-íris