Libre Fermi

Libre Fermi (リブレ・フエルミ) was one of the leaders of the Demi-Human Alliance during the Demi-Human War.

Being active in only one novel–Ex2–Libre played a rather important role, serving as one of the three commanders of the Demi-Human Alliance, and, following the death of Pivot Arnancy, he played a pivotal role in Bordeaux Zelgeff's character development, being directly responsible for his change in personality.

Appearance
Libre was a Snake Human and had a long body with green scales and yellow eyes. He wore a Jiangshi hat and had a black and purple Kararagi uniform with red ribbons.

Personality
As the moral heart and centre of Demi-Human Alliance, Libre was one of its most influential leaders. Compared to Valga and Sphinx, Libre sought to use war as a way to force humans to the negotiating table, and not for the destruction of humans or making use of them in experiments. Compared to the extremes of Valga and Sphinx, Libre sought the middle ground of compromise. During his time with the pair, Libre realized that if the Alliance lost the war, it would be because Valga couldn't quell his rage.

Libre was an honorable man who detested unnecessary violence or the desecration of dead humans and demi-humans alike. He enjoyed fighting strong opponents and held commend for warriors that could make him bleed and weep. With his high appreciation for warriors, he recognized Wilhelm's strong vitality and promised that he would put a flower on the Sword Demon's grave out of respect for the boy's abilities before attempting to give him a painless death.

History
As one of the leaders of the Demi-Human Alliance, Libre fought side by side with Valga Cromwell under a shared purpose of advancing the rights of demi-humans, despite their different goals. However, things changed when Valga found and brought Sphinx into their ranks. As the Witch's methods started to become increasingly questionable, Libre began to grow estranged from Valga over the giant's support for her. Although Libre continued to argue with Valga and was threatened death by Sphinx, he continued to work alongside them as they were indispensable to the Alliance's success.

At the Battle of Aihiya Swamp, where Libre would ambush the Zellgef Squadron and slaughter many of its members, including Pivot Arnancy. Although just barely coming out of the effects of large-scale magic that covered the battlefield, Wilhelm van Astrea would duel him, and after an intense fight, Libre would claim the upper hand. However, before he could deliver the killing blow, Sphinx would show up to and shower Libre with multiple incantations of Jiwald, much to his rage and disappointment at the betrayal, before being murdered by another barrage of Jiwald spells and rising from the dead as an undead puppet to cover Sphinx's escape.

In the Battle for the Royal Castle, Libre, now undead and under Sphinx's control, would fight against Wilhelm and company once more. He battled Bordeaux Zellgef until the spell over him was broken due to Sphinx suffering a severe amount of damage. As his last act as himself before turning into ash, he chopped off Sphinx's remaining arm in revenge, before dying for good.

Abilities
Double-Blade Fighting-Style: Wielding a fierce and tricky combat-style with his double-blade sword, Libre was a terrible and overwhelming foe on the battlefield. He possessed enough skill that he was capable of defeating even Wilhelm, marking him as one of Sword Demon greatest challenges in the Civil War.

Regeneration: Libre was able to regenerate lost limbs due to his ancestral blood being from the Serpent Tribe.

Poison: Libre was able to poison his targets.

Equipment: Libre wielded a sword with both blades at both ends of the hilt. He was extremely proficient with it, and was even able to overpower young Wilhelm. He would have easily killed him if it wasn't for Sphinx appearing out of thin air and slaughtering him in order to resurrect him and cover her retreat.

Trivia

 * Libre means free in both Spanish and French.