Originally known as Professor Nemuro, he was considered a computer-like genius who did not experience human emotions. One day, he is introduced to Tokiko Chida whose principal project was to find a way to grant her fatally ill younger brother, Mamiya Chida, eternity. At this point, Nemuro first begins to notice relationships and actually desires them for himself. Nemuro develops feelings for Tokiko and Mamiya. He devotes himself to Tokiko's project, even though Mamiya himself clearly does not wish for an extended lifetime. At some point, the building where the project development took place was on fire. Mamiya was inititally thought to be the instigator of the incident, but it was really Nemuro who set it on fire.