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(bìng )且带走亡国(guó )的小公主桃(táo )小薇，五岁萌娃(wá )桃(táo )小薇进入王(wáng )府后，搅得(dé )王府上下鸡犬不宁，冷血王爷首次(cì )体验养娃(wá )艰辛(xīn )，对桃小(xiǎo )薇照顾的无微不至。二人打打闹闹，彼此成长(zhǎng )