The romantic lives of three male flatmates - with the girl in each case played by the same actress.。南湘自幼从南家走失，长大后，收养人去世，她因为心脏病不能工作，只能靠捡垃圾为生，最终晕倒。南家找到她，认回，这时古代的升平公主——南湘穿越而来。成为真正的南家大小姐，同时，还要面临五个男人追求，只能说洒洒水啦。
