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.
I did a thorough investigation
about this lab back then,
لقد قمت بتحقيق شامل عن 
 ،هذا المختبر أنذاك
J’avais mené l’enquête
sur leurs recherches,
Ai tempi ho fatto un'indagine approfondita
sul laboratorio,
Eu fiz uma investigação completa
sobre este laboratório naquela época,