Whitebeard is dead and even in the four blue seas pirate crews are rising up at every island to pursue One Piece in response to Newgate's last words... well, at least most of them are. A certain four crews couldn't care less about such matters as they have their own goals to fulfill. AotFS follows these crews through their respective blue seas prior to entering the Grand Line!

Reborn had never disagreed with any of the ninth's decisions, but when the Vongola boss sent him to Japan to train Sawada Tamaki, the hitman started to think that the ninth had chosen the wrong twin…