[One Piece] The World Only God Knows

The Pirate King world has suffered a mysterious collapse. Are the key characters in the affected areas all turning into lovestruck fools? Hey, hey, hey, this isn't the kind of collapse we were promised! The Valkyrie tasked with protecting the Pirate King world has decided to put a stop to this bizarre collapse. Wait, wouldn't defeating the source of the collapse fix everything? Why do we have to go on dates to reverse it? What? There's kissing too!?? Absolutely not!!!