Lia Dragonell, sometimes referenced as Rhia Dragunel, is the last dragon Feral. Though appearing like a 19-year-old human, she is over 300 years old. Her draconic duty compels her to witness the world's beginning and end, bound by traditions forbidding interference in the natural cycle. This role aligns her with the World Salvation Committee, dedicated to averting global destruction.

Physically, she possesses blonde hair, a slender yet toned build, and stands 5'4". Intense anger triggers her draconic transformation, revealing wings, a tail, and horns. Despite this innate power, she favors combat with a pair of handguns, her magical attacks carrying music-themed names despite no evident musical inclination.

Within the game, she exhibits precognitive abilities, foreseeing future events. However, draconic customs prohibit her from acting on these visions to change outcomes, cementing her role as an observer. Her personality varies: the anime depicts a volatile temper, often choosing brute force over diplomacy, though respect for Naja Gref tempers her impulses. Broader portrayals highlight her straightforward nature and inability to mask intentions or emotions, reflecting a pure transparency.

Her relationships involve emotional complexity. She harbors a significant crush on Kyrie Illunis, the protagonist bearing the Destruct Code power, influencing her interactions and loyalty. Supplementary materials also identify Isis as her girlfriend.

Her narrative arc sees her joining Kyrie's group to observe the potential end. During the climax, she aids in confronting Lacertus Rex—revealed as the World Annihilation Front founder—and the Creator, an artificial entity governing the cycle of destruction and rebirth. After the Creator's defeat, she helps utilize the Primal Lords' powers to remake the world into a flourishing environment ensuring equal coexistence for humans and Ferals, fulfilling her destiny as witness to both an ending and a new beginning.