有着冷漠杀神封号的燕(yàn )国(guó )七皇(huáng )子颜曦，征战齐(qí )国一举剿灭，并(bìng )且带走亡国的小公主桃(táo )小薇，五岁萌娃桃小(xiǎo )薇(wēi )进入王府(fǔ )后，搅得王府上下鸡犬不宁，冷血王爷首次体验养(yǎng )娃艰辛，对桃小(xiǎo )薇(wēi )照顾的无(wú )微不至(zhì )。二人打打闹闹，彼此成长