In the 2026 "Hyperscale Era," Nautlix Corporation’s breakthroughs in AI, fusion, and terraforming have created an age of massive global prosperity. Against this backdrop, the "Mega Mac" has become an iconic symbol of the high-energy, fast-paced working class.

In a crowded Korean McDonald’s, this futuristic stability clashes with raw human emotion. Nineteen-year-old university students Ye-Won and Min-Jun are at a breaking point; Ye-Won has discovered Min-Jun’s infidelity with a girl named Su-bin. Their explosive argument erupts amidst the lunch rush, drawing stares from fellow patrons. While the world outside thrives on efficient, AI-driven precision, the scene inside remains chaotically human. As the couple’s relationship unravels, bystanders continue eating, indifferent to the emotional fracture. In an era where technology has conquered the environment, the messy, timeless complexities of desire and betrayal remain the one thing even the most advanced systems cannot solve.