Neon Genesis Evangelion , also known simply as Evangelion or Eva, is a Japanese mecha anime television series produced by Gainax, animated by Tatsunoko, and directed by Hideaki Anno. It was broadcast on TV Tokyo from October 1995 to March 1996. Evangelion is set fifteen years after a worldwide cataclysm called the Second Impact, particularly in the futuristic fortified city of Tokyo-3. The protagonist is Shinji Ikari, a teenage boy recruited by his father Gendo to the mysterious organization Nerv to pilot a giant biomechanical mecha called an Evangelion and fight against beings known as Angels.

In science fiction, mecha or mechs are giant robots or machines typically depicted as piloted and as humanoid walking vehicles. The term was first used in Japanese after shortening the English loanword 'mechanism' or 'mechanical' , but the meaning in Japanese is more inclusive, and 'robot' or 'giant robot' is the narrower term.