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–Ex 2–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 center of the 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
While Libre's early history is unknown, he saved Valga Cromwell from slavery in the past. He became Valga's friend, teacher, and mother figure before the Demi-Human War.

As one of the leaders of the Demi-Human Alliance, Libre fought side by side with Valga 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 with death by Sphinx, he continued to work alongside them as they were indispensable to the Alliance's success.

At the Battle of Aihiya Swamp, Libre would ambush the Zellgef Squadron and slaughter many of its members, including Pivot Wilhelm van Astrea would duel him here, 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 Corpse Soldier to cover Sphinx's escape.

At the Battle for Lugunica Castle, Libre, now an undead Corpse Soldier without his soul, would fight against Wilhelm and company once more while under Sphinx's control. He battled Bordeaux Zellgef until he suffered a severe amount of damage and the remainders of his soul would "return" due to Sacrament of the Immortal King's effects. For his last act as a puppet, Libre turned on Sphinx, cleaved off her arm, and promptly turned into ash.

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.