Daisuke locks Takei up in the basement of the Kambe residence. Cho-san interrogates him to find out who the mastermind is behind all of this, but Takei is shook with fear and refuses to speak. Daisuke discovers that the reason why HEUSC is being uncooperative is related to his parents’ research. Kato goes through the documents that Cho-san gathered in his 19 years of investigating the case and finds an important photo.
"Shigemaru Kambe"
"First Japanese physicist to advocate energy
created from imaginary numbers
" شيغيمارو كامبي" 
 "أول فيزيائي ياباني يدافع عن الطاقة الناتجة عن الأرقام العقدية"
Kambe Shigemaru
Shigemaru Kambe
KAMBE SHIGEMARU
Primo fisico giapponese a sostenere la teoria
di un'energia creata da numeri immaginari
e l'esistenza di un ordine superiore. 
Sua moglie Sayuri Kanbe, ora deceduta, 
era a sua volta una fisica.
KAMBE SHIGEMARU - FALECIDO