Zenon Griffey

Zenon Griffey was a magic swordsman instructor at Midgar Royal Spellsword Academy. He teaches the top swordsmanship class in the school, and was one Princess Alexia's fiance candidates. In truth, he was a member of the Order of Diabolos, plotting to use Alexia's royal blood for experiments.

Personality
While viewed as a friendly man making him popular among students, this is all an act and the real Zenon is a self-entitled brat who seeks glory and fame and looks down on others. He held nothing but contempt towards Alexia, taking the opportunity to mock her for her lackluster performance.

Due to the constant praises he received, he overestimates his own abilities. This made his extensive humiliation by Shadow shocking to him that he turned lost composure, cursing at the man for actually beating him.

Chronology
In order to advance to the Knight of Rounds, Zenon tries to coerce Princess Alexia into an engagement and take her for extracting her royal blood to offer to the Order of Diabolos. After Alexia starts dating Cid, Zenon kidnaps her and frames Cid for the crime.

As Shadow Garden assaults all the cult's hideouts in Midgar, Zenon retreats to the laboratory to capture Alexia. The two fight and Zenon physically and verbally beats Alexia. Before he could take her away, Shadow intervenes. Shadow easily bests Zenon's attacks and the former could only mock on his opponent's underwhelming strength, infuriating him. Zenon could only cry and beg for mercy before Shadow kills him with his Atom attack. After that, Zenon was ousted as a traitor and his students abandoned his classes.

Powers & Abilities
Also to make himself more powerful he uses red lozenge.

Cid Kagenō / Shadow
Zenon saw Cid as the perfect patsy to frame for his crime in kidnapping Alexia. He ordered his men to arrest and torture the boy to get a fake confession out of him before trying to have him killed.

When Zenon encountered Cid as Shadow, Zenon completely underestimated the leader of Shadow Garden, thinking of him as arrogant for taking out the minor bases. However after failing to land even a single blow on Shadow and his opponent repeatedly mocking him, Zenon grew increasingly frustrated until finally he became completely enraged. Zenon met his end by Shadow's "I Am Atomic attacked.