Raphael was a lifelike robot, who ultimately killed himself.
Raphael was one of the Lifelikes that lived together with the Monrova family. He had been close to Ana and her sister Marie and the three often spent their nights reading old books only to discuss them in the morning. Over his last days, Raphael seemed to grow sadder which finally resulted in his suicide. He decided to burn himself in the garden of Babel Tower where there were no cameras to watch him. As his last act of revolution before that, Raphael painted a note on his habitat wall saying "This, I choose.".