Nishi is a loser who has a crush on his childhood girlfriend. After an encounter with the Japanese mafia, he journeys to heaven and back, and ends up trapped in an even more unlikely place.
This anime is a chaotic, jarring, psychedelic, and philosophic masterpiece. A simultaneously simple, yet bizarre journey whose message becomes crystal clear by its end. It is a passionate and loving call to live a life of fewer regrets.
The first time I started watching it, I quit after a few minutes, but I consider it to one of the finest movies I've ever seen.