Angelique étoile Prologue (アンジェリーク エトワール プロローグ) is a limited edition preview of Angelique étoile, a game which was still in development at the time. This software is a promotional item developed to build hype for the fourth main installment. The Sacred Guardians' new outfits and the brief promotional trailer for étoile are two of the main draws for series's fans.