Saikawa and Nishinosono return to the camp, putting off trying to find a solution to the case. But they can't stop thinking about it. They go back to the lab and investigate Dr. Shiki's rooms again, where they find a strange number that is a clue.
What was the purpose of that robot, Michiru?
ما كان الغرض من ذلك الرجل الآلي، ميتشيرو؟
Wofür gab es den
Roboter Michiru?
¿Cuál es el propósito del robot Michiru?
¿Cuál es el propósito del robot Michiru?
À quoi pouvait servir
le robot Michiru ?
Por que é que o robô 
chamado Michiru foi criado?