Aki is a character in the James Bond movie, You Only Live Twice. She is the first love interest of James Bond in that movie.
Aki was a contact that Bond was supposed to meet in his mission to stop SPECTRE. He discovered that she was indeed the agent, by telling her the code ("I love you").
After the two work together to stop SPECTRE, the two begin to fall for each other, and eventually spend the night together, sleeping with each other.
Unfortunately, SPECTRE sends an assassin to kill Bond, but the assassin accidentally kills Aki. Bond in return, kills the assassin.