TheMailbox里寄托着无尽思念，每一封信都承载着心声。爱情故事上集

　　A young girl's weary and exhausting day is suddenly shaken by a strange, yet familiar sound. Her curiosity propels her deeper and deeper, and she quickly finds her pursuit has taken her much further than she'd realized. However, her curiosity may lead her where she's not prepared to go.