有着冷漠杀神封号的燕(yàn )国七皇子颜曦，征战齐国一举剿灭，并且(qiě )带走亡国的小(xiǎo )公主桃小薇，五岁萌娃桃小(xiǎo )薇进入王府后，搅得(dé )王府上下(xià )鸡(jī )犬不宁，冷(lěng )血王爷首(shǒu )次体验养娃艰辛，对(duì )桃(táo )小薇照顾的无微不(bú )至。二人(rén )打打(dǎ )闹闹，彼此成长