In this file, it turns out that the FBI agent who committed the mistake which caused Akai's operation to fail was actually Camel. When Akai and his FBI partners were on the lookout for Gin, they saw an old man wandering around. Akai did not say a word and ignored that old man, but Camel was foolish enough to warn the old man from staying there. Thanks to that, Gin knew that Akai was an FBI agent, and the operation has failed.