The tragic events surrounding the deaths of Char Aznable and his sister Sayla Mass, following the sudden passing of their father Zeon Zum Deikun, a prominent Spacenoid leader, set the course of their destinies. Their narratives unfold in the four installments of 'Chronicle of Char and Sayla,' delving into the rise of the Zabi family who seize power in Side 3 and establish the Principality of Zeon. These episodes explore the early lives of renowned Zeon ace pilots embroiled in the looming One Year War, the clandestine world of mobile suit development, conflicts with the Earth Federation Forces, and the tumultuous path that culminates in all-out war.