Rin and Karen tend to argue several times. Well, since when fire and water get along?
Coco and Nats' names seem to be a play on the word "coconut".
Gameo is shown to get on Nozomi's nerves a lot of time to the point that she outright hates him. Considering how Gameo wants to be successful with as little work as possible it's only natural that Nozomi, who has to work hard and struggle with several things, finds herself annoyed by someone like him. It's Personal for her.
In Episode #28 of "GoGo", you may think that the heat wave that is giving the Yes 5 Pretty Cure a problem is just there to make Milk the Butt-Monkey of a joke by having her turn from her human form into her mascot form. As You Know, Milk got her human form from the Blue Rose that she grows, and heat can kill a flower — if you don't give the flower water. In other words, the heat wilted the body form.
Also about Milk: it can be argued that her signature color as Milky Rose is purple, rather than something closer to the pink and red hues of her original mascot form, due to the influence of the blue rose. Pink/red + blue = purple.
In her last episode, Shibiretta traps the protagonists in a story that will never end. And what better story than One Thousand and One Night for such a plan.
Syrup is shown to truly admire Santa Claus. Considering he's a deliveryman, it's no wonder his idol is the greatest deliveryman of all.
