The Demon kills the Demon, and the dead Demon will also condense into an item.
After consuming the 'death drop', the Demon can absorb part of the deceased Demon's abilities for its own use.
The above was discovered by Yan Luo and Sasa through the surveillance video in the trunk.
The cicada-like monster is a fairly weak Demon, having no other means of attack besides its painful bite.
Even if the cicada-like could break human skin with their bite, their small size means they can't cause real harm—unless the bitten area is near a major artery.
However, Yan Luo and Sasa watched the surveillance footage and found that the captured cicada-like creature seemed capable of emitting high temperatures, melting the box.
It was only now that they discovered that the [Demon Preservation Box] has this flaw—when subjected to temperatures above 400℃ and below 500℃, the glass of the preservation box would gradually melt, without triggering any alarm.