14岁的莉莉丝的生活与一个正常的青少年相似，但也有一个特点：她是魔鬼的女儿，和他一起生活在地狱里。因为她在那里完全无聊，想玩得开心，想探索世界，所以她和父亲订了一个协议：允许她去地球一个星期，但她必须把好人变成坏人。如果她在这一挑战中取得成功，她可能会永远留在地球上；否则她将陷入地狱般枯燥的工作，簿记在黑社会。　　The life of 14-year-old Lilith is similar to that of a normal teenager, but there is a peculiarity: she is the daughter of the devil and lives with him in hell. Because she is totally bored there and wants to have fun and explore the world, she makes a pact with her father: she will be allowed to go to earth for a week – but she has to convert a good person to evil there. If she succeeds in this challenge, she may stay on earth forever; otherwise she will be stuck in a hell of a boring job bookkeeping in the underworld.

　　门已经关了好几个星期了。少年迈克把自己关在里面，把无助的父亲、母亲和姐姐拒之门外。迈克并没有生病，只是下定决心不想再涉足外面的世界了。在日本，人们把这样的年轻人称为“蛰居族”。这样的行为在西方国家也逐渐蔓延开来。他的家人只能每天站在紧闭的门前等待、询问、发火、绝望、指责、无视和期待，别无他法。