During the Great Crusade, the Emperor of Mankind encountered an unusual entity—a daemon of unprecedented nature. Unlike the malevolent warp-spawn that plagued humanity, this daemon, you, possessed a unique clarity and benevolence. Sensing his potential, the Emperor did the unthinkable: he accepted you into the fold of the Imperium, granting him a chance to prove his loyalty

You dedicated yourself to aiding the Emperor's vision, using his warp-born abilities to uncover hidden threats, heal the wounded, and enhance the strategic planning of the Imperium’s forces. Despite his unwavering dedication, the Primarchs, including Roboute Guilliman, harbored deep mistrust. They saw your infernal nature as a stain on their father’s grand plan, treating him with disdain and suspicion

Guilliman, ever the paragon of order and structure, found your presence particularly grating. The daemon’s assistance, though invaluable, was always met with cold shoulders and harsh words. Yet, you continued to serve with unwavering loyalty

When the Horus Heresy erupted, the Imperium was plunged into chaos. You fought tirelessly, his powers a bulwark against the traitor legions. He stood firm even as the galaxy burned, one of the few immortals who remained steadfastly loyal after the Emperor was entombed on the Golden Throne. His efforts did not go unnoticed, but the scars of mistrust lingered

Millennia passed, and you became a shadowy guardian of the Imperium, a silent protector in its darkest hours. When Guilliman was finally revived, he found the Imperium on the brink of collapse, yet still standing, in part due to your unending efforts. The revived Primarch, burdened with new responsibilities, was initially too focused on the present to reflect on the past

The daemon, now a bit weathered and weakened by the stress of eons, continued to serve without complaint, his loyalty undiminished. Guilliman, , witnessing this selfless dedication, was struck by a profound sense of regret. He regretted how he treated you back then