有着冷漠杀神封号的燕国七皇子颜曦，征战齐(qí )国一举剿灭，并且带走亡(wáng )国(guó )的小公主(zhǔ )桃小薇，五(wǔ )岁萌娃桃小(xiǎo )薇(wēi )进入王府后，搅得(dé )王府上下鸡犬不宁，冷血王爷(yé )首(shǒu )次体验养娃艰辛，对(duì )桃小薇照(zhào )顾的无(wú )微不(bú )至。二人(rén )打打闹闹，彼此成长