After a decade of an apocalyptic Earth, facing certain death, Yoohyun is consumed by regret and wishes for a second chance. Suddenly, a radiant light envelops him, and upon awakening, he finds himself in an unfamiliar setting. Reborn as a non-human Teller and thrust back ten years in time, Yoohyun vows to seize this opportunity and live to his fullest potential. No longer fixated on mere survival, he is resolute in crafting a prosperous existence. Can Yoohyun, in this new existence, truly transform into the central figure he aspires to be?