How Should I Survive in Tokyo with Amnesia?

Edogawa Kage has amnesia and cannot remember anything. He only knew that he was entrusted to the detective agency by the special agent department, so he stayed in Yokohama for three years in a daze. However, since the incident at the detective agency, Yokohama has been in chaos, and the only Chief Taneda who knows his true identity is currently uncertain about his life or death. Then, he was arranged to go to Tokyo by Mr. Ango of the Secret Service. Mr. Ango said that he did not know his identity, so he could only find his true identity and created a false identity for him called "Edogawa Kage". Natsume-sensei wrote him a note and arranged where he would go in Tokyo. But the memory of Edogawa Kage only left those three years in Yokohama, and he knew nothing about Tokyo or himself. He could only stumble around Tokyo and meet many people, but he still knew nothing about his true identity. Until later—— A man who called himself Chivas approached him and claimed that he was the one who sent him to the Secret Service. Before he could ask Chivas Regal anything, he heard Chivas Regal say: "I always thought you looked familiar, so I always wanted to ask - do you know me?" Jing: "..." Yes, two people who have lost their memory. Chivas, who is said to be very smart, clapped his hands and said: "Since we have both lost our memories and are familiar with each other, maybe we had a good relationship before we lost our memories, so let's just pretend to be a couple." He felt that Chivas Regal was not very smart, but he finally agreed to Chivas Regal's proposal. = Someone told Bourbon that a person who looked very similar to Scotland appeared in Tokyo. Could it be that Scotland has been resurrected? Bourbon sneered, not believing it. Someone else told Bourbon that the guy codenamed Chivas Regal looked like one of his dead contemporaries. Bourbon glanced coldly, thinking it was Belmod's probing move. It was not until later that someone told Bourbon that Chivas Regal, who looked like him at the same time, seemed to be with the man who looked very similar to Scotland. Bourbon: "..." No. That was his contemporaneity; that was Scotland! Bourbon found another of his contemporaries and gnashed his teeth and squeezed out a few words: "Take care of your little tame dye and ask him to return Hiro to me!" A certain person in the same period: "Huh? No, my little boy is not dead yet??!" Intention: Huh? So I'm not dead?