Gihren Zabi is one of the leaders of the Principality of Zeon and the eldest son of Degwin Sodo Zabi, the ruler of Zeon who initiated the war with Earth. Following the death of Degwin's favored son, Garma Zabi, in battle, Degwin stepped back from his leadership duties, effectively making Gihren the de facto leader of Zeon. This shift was most evident during Gihren's speech at Garma's state funeral, where he possibly introduced the iconic salute "Sieg Zeon!" which translates to "Victorious Zeon."
Gihren possessed an exceptionally high IQ of 240 and remarkable oratory skills. His relationship with his sister, Kycilia, was often contentious as they shared similar political ambitions but differed in their methods. Despite successfully reducing his father's role to that of a figurehead, Gihren still had to endure Degwin's criticisms and disdain. Degwin viewed Gihren as merely an updated version of the historical dictator Adolf Hitler—a role that Gihren embraced wholeheartedly.
