Noah, a restrained brand planner, secretly dates Leon, a top movie king adored by millions. Leon is clingy, soft and deeply obsessed with Noah, yet Noah always keeps a cold distance to avoid being labeled a celebrity’s accessory. Workplace harassment, jealous rivals and Leon’s overprotective affection repeatedly create rifts between them. After resolving all external troubles, Leon hides his fatal terminal illness alone, afraid of ruining Noah’s rising career. After Leon’s passing, Noah drowns in endless regret. All the sweet, tender days they spent together turn out to be a painful fantasy he created to make up for his lifelong indifference and belated love, leaving him with an unredeemable apology that can never be delivered.