Ninja in the World of Pirates

It is said that the protagonist is a loser after traveling through time. How come he is a loser when he comes here? Naruto was killed instantly by Obito during the Fourth World War when traveling back in time. I'm not willing to give in. Maybe God heard my voice and gave me another chance to travel to the pirate world again. This time I can't be the protagonist, but I have to be a supporting character. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.