One Piece: Thunderclap

A man who lived an average life and died in the most cliche way, got a second chance in life to live in his favourite fictional world. And he'll be damned if he didn't live his life to the fullest this time. There will be a system. Harem? Probably not. We'll see. Will he join strawhats. No. I'll try not to make him too OP. Power system will be mostly one piece based other than a few skills from the system.