In this bustling city filled with the smell of concrete, a long-dusted past flows like a river of time. The protagonist Lin Oak is one of the hurried working women, mature, stable and financially independent. However, behind her glamorous appearance, she has experienced various ups and downs and injustices. Various tests in life, work, and love have tempered her, transforming her from a rebellious, willful, and self-emotional girl into a rational and independent woman. For this transformation, she paid a huge price, gave up her ideals, and reshaped herself. Lin Oak has been experiencing giving up and gaining in the first half of her life, and she hopes to regain herself in the second half of her life.