Anzu Tezuka (手塚 杏, Tezuka Anzu?) is the eldest sister of the seven Tezuka children and is 16 years old. She is not a Comrade; however, her skills with computers prove to be of great use. For example, she is able to hack and track down the lucrative US Naval Base that holds the Heart of Akuro. According to information given in the story by Yukie, Anzu is very similar to her father because she is just as tech savvy as him. After the failed attempt to retrieve the Heart from the base in Japan, Anzu ends up staying with Oda and Amamiya. With the two former reporters, who have since lost their jobs due to their investigation of the Heart, they created a website containing information on the Comrades and the Heart of Akuro using the alias, "Rain."

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