Su Wan looks down to reply to a message and fiercely bumps into a stranger, Lu Yanci, on the community's shaded walking path. Their initial collision kicks off a mutual bickering mode, and she unexpectedly discovers that he is actually the new neighbor who just moved in next door. Through continuous hallway encounters, a socially awkward moment of borrowing tape, assembling a bookshelf together, and exchanging handmade pastries, a heavy rain brings the two even closer. The aloof and taciturn Lu Yanci hides tenderness, and the clumsy and straightforward Su Wan slowly falls in heart. From bickering neighbors to devoted lovers, osmanthus cakes, evening breeze, and mountain sunset witness this urban sweet romance bumped out by chance.