有着冷漠杀神封号的燕国七皇子颜(yán )曦，征战齐国一举剿灭，并且带(dài )走亡国的小公主桃小薇，五(wǔ )岁(suì )萌娃桃小薇进入王府后，搅(jiǎo )得(dé )王(wáng )府上下鸡犬不(bú )宁，冷血王爷首次体验养娃艰辛，对(duì )桃(táo )小(xiǎo )薇照顾的无(wú )微(wēi )不至(zhì )。二人打打闹闹，彼此成长