Kihara Gensei

Kihara Gensei is part of the supporting cast of Toaru Kagaku no Railgun.

According to Telestina, Kihara is a famous and influential scientist who famous in different circles. His expertise is in the line of neuroscience, where he conducts experiments to improve the potential of the human mind, though in more sinister ways than most scientists.

His biggest research project yet is SYSTEM (Level 6 Creation Project), which aims to explore the possibilities of humans to "reach the will of heaven" by creating a Level 6 Power User. His methods are through "overloading espers" by destabilizing the brain and breaking its tolerable limits by the use of manipulation of the brain and subjecting it to extreme treatments involving overuse of chemicals. This is done on a number of test subjects, a number of them Child Errors. Its product is a mixture of chemicals called by Kihara himself as "crystallized esper essence", which is presumed to have been extracted from his test subjects and given a form similar to a round piece of candy. According to him, it contains the necessary substances to be congested by chosen espers for his plan to advance.

Kihara is a sinister figure despite his usually smiling expression; he has no qualms in killing people for the success of his research, which brings him at odds with Heaven Canceller, whose belief in the Hippocratic Oath clashes with Kihara's eagerness to push the boundaries of science.

Currently, his whereabouts are unknown, though his experiments still continue.