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.
You couldn't answer me
when I asked for a name.
لم تستطع إجابتي حينما 
 .سألت عن الإسم
Du konntest nicht antworten,
obwohl du nach dem Namen gefragt wurdest.
No pudiste contestarme cuando
te pedí un nombre.
Tu étais incapable
de m’indiquer son nom,
Non hai saputo rispondermi
quando ti ho chiesto un nome.
Você não pôde me responder
quando eu perguntei por um nome,