Noted by now, there is a lot of light heartedness and entertainment in this anime. As well as of course the bizarre and intense fighting. But in this collection we get shown the more tragic pasts some of the members of this world have had to/ are dealing with. For me this is one of the things that makes One Piece such an addictive show. As the Strawhat's show us, no matter your past, press on for your dreams and goals. Live each day with no regrets, and if possible, die with a smile on your face. Collection 4 wraps up the clash with the Fish-man Pirates, but i'll go into that on it's own review ^_^