Neon Genesis Evangelion (新世紀エヴァンゲリオン, Shin Seiki Evangerion) is a Japanese animated television series, begun in 1995, directed and written by Hideaki Anno, and produced by Gainax. It takes place in 2015, fifteen years after the catastrophic Second Impact, reportedly caused by a meteor strike, which wiped out half of Earth's population and tilted its axis. Just as humanity is finishing its recovery from this disaster, Tokyo-3 began suffering attacks by strange monsters referred to as Angels. Conventional weapons are useless against the Angels, and the only known defense against them are the biomechanical mecha created by the paramilitary organization NERV, the Evangelions (Evas).
Although the series starts as a regular mecha anime, the focus tends to shift from action to flashbacks and analyses of the primary characters, particularly the main character Shinji Ikari. The creator/director, Hideaki Anno, suffered from a long period of depression prior to creating Evangelion; much of the show is based on his own experiences in dealing with depression and in psychoanalytic theory he learned from his psychotherapy. As a result, characters in the anime display a variety of mood disorders and problems with emotional health, especially depression, trauma, and separation anxiety disorder. (Wikipedia)