Twenty-nine-year-old advertising planner Chen Yu has been worn down by mortgage payments, overtime, and demanding clients, turning him into the cold-faced "Landlord Chen." Su Wan, an unemployed illustrator, enters his spare bedroom carrying her drawing board, debts, and a heart full of sunshine. She messes up his proposals, while he stands up to her difficult clients. Amid the warmth of everyday life, they heal each other, fall in love, and make promises about their future. But Su Wan has long known that she is seriously ill and chooses to leave quietly. When Chen Yu chases after her to the seaside with a ring, what awaits him is a belated farewell and a little art exhibition he completes on her behalf.