An aspirant mangaka who wishes to marry Myon, but his lack of self confidence and his insecurities prevent him from achieving any of these results. That is until his life changes drastically, being killed by the yakuza Atsu and then meeting God. He then gains the possibility of a second chance, living life to its fullest.

(from Wikipedia)

Audiences will begin to grasp what they are in for early on, as loser Nishi, too wimpy to try to save his childhood sweetheart from gangsters, is shot in the butt by a soccer-playing psychopath, projecting Nishi into the afterlife. In this limbo, God - shown as a series of rapidly changing characters - tells him to walk toward the light. But Nishi runs like hell in the other direction and returns to Earth a changed man, driven to live each moment to the fullest.<br>
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(Source: Shout! Factory)