How Long to Watch “Rozen Maiden”?

Sakurada Jun isn't exactly the kind of guy who rises to the challenge. Having trouble getting along with his classmates, he decides to just stay home, spending his hours surfing the internet and shopping online, always returning his purchases just before payment is due. One day, while in the midst of his usual browsing, he comes across an offer that claims he should place his order in his own desk drawer and, with nothing better to do, Sakurada tries it. Much to his surprise, the order disappears and, soon, the mysterious item is delivered to him: a doll. She is exquisitely crafted and it turns out that after she's wound up, she walks and talks and acts like a normal girl. The only catch is that she treats Sakurada like her own servant. Can this timid boy and mysterious doll learn what they each need to get along in their strange world?.