24-year-old Kang Rojun has spent years isolated, his fire-scarred visage a constant reminder of the tragedy that shattered his life. Once ordinary, he now lives as a recluse—spurned by society, trapped in grueling labor, and suffocated by endless hopelessness. Everything shatters when an enigmatic app called "AI Simulation" mysteriously appears on his phone. On impulse, Rojun designs an idealized version of himself within the app—only to awaken the next morning transformed. His new face is magnetic, captivating, and undeniably breathtaking. Suddenly, doors swing open. Admiring glances follow him everywhere. A world of infinite possibilities unfolds before his eyes. But as Kang Rojun navigates this intoxicating new reality, he discovers that appearance isn't everything—and some transformations run far deeper than skin.