《信箱故事：生活中的小秘密与温暖瞬间》嘶哩嘶哩动画网

　　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.