
Kallian is the prince of the High Entia and the half-brother of Melia. Unlike his half-sister, who mother was a Homs, both of his parents are High Entia, making him a full-fledged, pure-blooded High Entia. However, he was not prejudice nor hateful of his sister in spite of this, unlike his mother. He saw his sister as a major hope for his race as his father did. He served as taking part in the leadership role beside his father. That place was filled even more after his mother's arrest for her plot to murder the daughter of the Second Consort. After his father was killed by Mumkhar, he took on the full leadership role. As well as the leader of the Alliance Army within the second Battle of Sword Valley, which was not only fought by the Homs, but also joined by the High Entia and the Nopon. Kallian commanded his army with pride, having inspired all those under him as well as giving clear and decisive commands based off of the situation at hand. He was also a brilliant strategist and a quick thinker, having prevented many casualities after Egil plugged himself into the Mechonis and reawakened it.
However, things took a turn for the worse when after the soul of the Bionis, Zanza emerged to retake control of his vessel. At that point, massive amounts of ether were released around a large portion of his people, transforming all the pure-blooded High Entia nearby into Telethia, including himself. It was also revealed that he knew about this, stating that this was why Melia was the only hope for their race and it was also why High Entia bred with Homs, so that enough of the Homs genes would make any half-Homs High Entia immune to the transformation.
Lorithia, the leader of the High Entia's Ministry of Research, summoned Kallian's Telethia form into the literal heart of the Bionis and fused with him. After the group defeated her, Kallian reached out to his sister one last time. He tells her that she is not to blame for the High Entia's downfall, and repeats that Melia is the hope of the High Entia. He sacrifices himself to destroy Lorithia with him then expresses that he will be happy to reunite with his father and tells Melia that she must now live her own life and make her own choices before fading away forever.