Bai Yue, a girl who has been confined in a sanatorium since childhood, unexpectedly escapes and finds herself transported 2,000 years into the future, into a world dominated by beastmen. She is bought by a powerful and handsome beastman named Lang Xiao, who treats her with great care, even enlisting a "bear nanny" to help look after her. However, as she starts to enjoy her life as a pampered "pet," she begins to notice that her master's affection may be crossing some boundaries. Her struggles to maintain her dignity while navigating this bizarre new world make for an intriguing and humorous story.