Can a broken promise from the past find its second chance? In high school, Wen Yifan was the stunning school beauty whose graceful ballet dancing captured the heart of the proud, brilliant Sang Yan. But family tragedy forced her to break his heart and vanish. Six years later, fate reunites them as an introverted journalist and a successful bar owner who end up unexpectedly sharing an apartment. Surrounded by crazy rumors, hidden trauma, and a mysterious sleepwalking habit, step into a beautifully moving, slow-burn modern C-drama romance where an unforgettable first love fights through the frost to finally bloom.