有着冷漠(mò )杀神封(fēng )号的燕(yàn )国七皇子颜曦，征(zhēng )战齐国一(yī )举(jǔ )剿灭，并(bìng )且(qiě )带(dài )走亡国的小公主桃小薇，五(wǔ )岁萌(méng )娃桃小(xiǎo )薇进入王府后，搅得王府上(shàng )下鸡犬不宁，冷血王爷首次体验养娃艰辛，对桃小薇照顾的无微不至。二人打打闹闹，彼此成长(zhǎng )