"Krek krek krek, little girl, you look absolutely tasty! Derrick here loves them young and supple, so that when I defile you with my demon cock, you'll scream like a pig in heat, krek krek krek!"
The Fire Imp released some extremely vile words that made Reina's tense expression change to one of anger. Her nervousness instantly bled away as she focused, aiming to put the hurt down on this vile thing.
Derrick had obviously put those words forth in order to disrupt Reina's state, but he would have been better off acting menacing by staying silent. Right now, he had only dispelled his advantage in terms of her mental state, truly leveling the playing field.
When the fight began, the Fire Imp wasted no time summoning the Giant Fireball which was about the size of a large SUV. It spent about 3 seconds generating and expanding in size before being launched at Reina.