Mystery: At the start, you gain the uniqueness of the thief.

Rosen, Amon's twin brother, embarked on a journey through various timelines. He arrived in the Third Age, where he summoned Zhou Mingrui and engaged in playful competition with him in the Old Age. In the Fourth Age, Rosen joined the Red Angels, using his abilities to defeat Adam, create the enigmatic Tudor, and aid Azik in escaping his troubled past. With Zhou Mingrui, Rosen also participated in a pivotal battle against the Celestial in the Source Castle, leading to the birth of Mr. Fool as an angel and the fulfillment of the prophecy known as the "Return of the Fool" in the Fifth Age. Additionally, Rosen served as Rosell's confidant and pen pal, contributing to Amon's unconventional and complete childhood. Throughout the eras, Rosen left a lasting impact, ultimately ascending to a position of power in the Old Age.