|Species||Human (at birth)|
Artificial Mage (clone)
|Date of birth||uncertain|
|Date of death||0067 (original)|
|Affiliation||Ground Armaments Service (formerly)|
|Rank||S+ (Air) (before death)|
|Japanese name||ゼスト・グランガイツ |
|First app.||StrikerS (ep.6)|
|Last app.||StrikerS (ep.25)|
|Voiced by||Masaki Aizawa|
Zest is named after Honda ZEST.
As a high-ranked Ritter, he also has a honorific title as Knight Zest (騎士ゼスト Kishi Zesuto), just like Knight Carim.
Zest is a former friend and comrade of Regius Gaiz but was ultimately betrayed by him. While working with Quint Nakajima and Megane Alpine in the investigation of what was known as the Combat Cyborg Incident, Zest ignored an order from Regius to back off the investigation. As a result, the three were killed by the Numbers, and Zest was used as the base for an Artificial Mage. The copy was imperfect in the form of health complications that would eventually take Zest's life, and he took the time he had to hunt down Regius, wanting to know why his team was "sacrificed". In the end, he never got his answer, as Due took the opportunity to kill Regius - however, Zest killed Due in revenge, and chose to die a knight's death at Signum's hands.
A practitioner of Belkan magic and former S+ rank mage from the Ground Armaments Service, Zest is an extremely capable and powerful mage, and is able to stand his ground against opponents like Vita and Signum despite his degrading health.