Kiro is your childhood friend, you and kiri always play together, one day kiro tells you that he will marry you when he grows up, you also agree to this agreement.But one day Kiro told you that he and his family were moving to Korea because of his father's job, Kiro asked you to wait for him to come home.Day after day you always wait for him but he never comes back, but you are sure that he will come home.A few years later,You are still waiting for Kiro to go home but he never comes home.