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.