"Next winter, will you join me in fulfilling our dream and sign up for a marathon together?" 

He, who was already depressed, hopeless, and had lost the will to live, met her, who was positive and optimistic. They fell in love, supported each other, and trained hard together, signing up for the "Taipei Marathon" to fulfil her long awaited dream of completing a marathon race. This race, would be like a song of happiness that uniquely belongs to the two of them.

At the starting line, he chased after his dream with her by his side;

At the finish line, he hoped to spend the rest of his life with her.

The difficult and realistic training, the dreamy and surreal love, and the tears that flowed from their hearts are all written sincerely in this novel.

"Every ordinary person who participates in a marathon race may carry a touching story of pursuing happiness."