In a world where humanity is prey to Eldritch Beings from the Abyss, society clings to a fragile balance, harnessing their terrifying power for protection. Only a select few, known as Abyssal Conduits, can form pacts with these ancient entities, gaining strength at the cost of their humanity. Zephyr Crowne, an orphan, rises from obscurity to become one of the most powerful Abyssal Conduits, driven by a noble desire to protect those he loves and end the relentless invasions. However, betrayal strikes from the very people he swore to defend. Framed for treason by his mentor and sentenced to death, Zephyr resolves to stop the Eldritch horrors by becoming the Abyss itself. Surviving against all odds, he uncovers the horrifying truth behind Abyssal Energy: it is the lifeblood of reality, and its forbidden sources threaten to tear the world apart. As he delves deeper into darkness, Zephyr transforms into the Architect of Ruin, commanding an army of Eldritch horrors. With a twisted vision of a "perfect world," he forges darker pacts and performs forbidden rituals. Will he be humanity’s savior, or will he become its doom?