Set in Noryangjin, Seoul, the story follows the lives of people who drink alone—each with their own reasons, from stress to loneliness. At the center are Jin Jeong Seok, a confident and popular instructor, and Park Ha Na, a rookie teacher trying to find her footing in the competitive world of private civil service exam prep.

Jeong Seok is cold and self-reliant, preferring solitude even after work, while Ha Na is warm, hopeful, and eager to succeed despite constant setbacks. As their paths continue to cross, their differences spark both tension and unexpected connection.

Through late nights, quiet drinks, and growing feelings, they discover that sometimes, love finds you when you least expect it—even if you're used to drinking alone.