Huaren Jass is an antagonist who appears in MagnaCarta 2. The leading Chief Sentinel researcher of the Northern Forces' Sentinel group, his body was monstrously changed from using himself as a test subject in his numerous experiments.
The man who leads the Northern Forces Army's Sentinel research. His research on the living weapon was made possible by Schuenzeit's support. His body was once that of an ordinary man, but in using himself as a test subject for his experiments, he turned himself into a monster. He is consumed by his own research, and cares about nothing else in the world. He has a docile, optimistic character, but his lack of hesitation – even pleasure – as he engages in his heartless research is something truly to be feared.
- He is voiced by Yosuke Akimoto and English dubbed by Liam O'Brien.