She doesn’t even know his name, while he knows everything about her. Yesu is haunted by failures in all sorts of areas—romantic relationships, work, and even at home. But despite all the difficulties, she keeps faith in a better future. When her optimism begins to fade, a mysterious pen-pal enters her life—someone who understands her without words. Yesu decides that no matter what she must find the stranger who hides his identity and appearance—without realizing the consequences that may follow…