Eiyuu Densetsu: Zero no Kiseki - Yotsu no Ummei

This prequel novel serves as a side story to *Eiyuu Densetsu: Zero no Kiseki*, focusing on the original prologue chapters. It explores the early lives of the four main characters prior to their formation into the "Special Support Section." Each protagonist's background is detailed, offering insight into their individual experiences and circumstances before they joined forces. The content is limited to these introductory chapters and does not include later developments from the main series.