Hajime Shimada was a member of the Japanese Brotherhood of Assassins during the late 20th and early 21st centuries. He was a part of the Assassins' training camp on the island of Kyushu.
In 2000, after learning of Daniel Cross' betrayal of the Brotherhood, Hajime implored the camp's overseer Yuri to evacuate the camp and regroup with the Assassins in Osaka. Before the discussion was over, the Templar agent Maxime Gorm and his team had already discovered the camp based on Cross' intel and started eliminating the Assassins. Yuri was struck by several bullets and implored Hajime to take her young son, Tomo Sakagawa, to safety. The two fled into the mountains and escaped Epsilon Team, eventually moving to Tokyo.