Fridge Horror: Stuff passes by without real dangers behind it. Then again, it's a game series with plots not to usually be taken seriously.
In SUN; increasing the sun's size for an endless summer, eh? What about Mercury, Venus, and the ice caps melting?
In 15th: wouldn't fish die in a sea of jelly, Lemres? Way to go.
Fever 2: Isn't it weird that it takes Amitie, Raffine, and Sig a little bit to realize that Klug isn't himself? Klug has horrible friends if they can't even tell his voice dropped a few octaves, let alone that he's wearing a cape or was possesed by a demon.
Fridge Logic: Klug was given the book he carries by Lemres to power up his magic. This isn't harmful by its self. ...Put into consideration the book said that Klug could get stronger with three items he had to steal, and then him getting those items released the demon inside and caused Fever 2's plot. Once more, way to go.
In Fever, you could instantly get the tip that something was up when Ms Accord lost her "flying" cane.