Kenjiro Igarashi (五十嵐 健次郎 Igarashi Kenjirō) is a physicist who is Ryu Tenkuji's old research associate into the Eyecons and Gamma. He sought a way to save the Fukami siblings from the Eyecon monolith but was unsuccessful because of Ryu's death as a result of protecting Takeru from a Gamma's attack 10 years in the past. This has left the professor traumatized and anti-social, particularly after he discovers that his and Ryu's former colleague Chikara Saionji has betrayed them for secretly using the Fukami siblings as his guinea pigs. In the present day, Takeru tracks him down for help, which reignites his passion in the research to save the two, unaware that Makoto has freed himself and Kanon remains trapped in some fashion. He is targeted by the Seiryuto Ganma because he still has the Benk