Bloodlust

"Hmm, Spirits give quite a lot of experience, huh?" Eiro muttered to himself quietly, and Nelli just groaned in response and looked at the demon as if it was obvious, "Of course, we spirits are special, you know? And usually it wouldn't be this easy to kill a spirit, but... these guys are idiots, apparently." She pointed out, and Eiro immediately nodded his head and pushed his hand forward to grab an item out of his treasury, the spark-snapper, and then placed it onto his fingers.

"Oh, definitely." The Demon replied, "Then let's indulge a little, shall we?" Eiro suggested, and then just casually snapped his fingers to create some small sparks that immediately spiked up into proper flames that Eiro used to wrap the bodies of the leftover spirits that were too slow to properly react.