One piece mystery

one piece an anime the characters : Thundercross ( you ) , Nami , Luffy , Zoro, Sanji , chopper , Usopp , Franky , Jinbe , Robin , kaido , enel , ace , sabo , yamato , uta , blackbeard , marines, arlong , whitebeard , shanks Story : you recently joined the crew and now you and strawhats ( usopp, luffy , nami , sanji , chopper , robin, zoro , franky ) others that i mentioned will show up when you say ok so you guys were going to marineford for exploring and selling things but now nami is in danger a guy trapped her but you guys don't know that she is at a dark cave and trapped there you guys only know that she is been missing find her fast with clues that mysterious guy will kill her in 8 days before that save her with the clues available its like a detective story and save her and find who did this