有着冷漠(mò )杀神(shén )封号的燕国七皇子(zǐ )颜曦，征战齐国(guó )一举剿灭，并且带走亡国(guó )的小(xiǎo )公(gōng )主桃小(xiǎo )薇，五岁萌娃桃小薇进(jìn )入(rù )王府后，搅得王府上(shàng )下鸡犬不宁，冷血王(wáng )爷首(shǒu )次体验养娃艰辛，对桃小薇(wēi )照顾的无微不至。二人打打闹闹，彼此成长