the 30 day engagement / 30 day fiancée / 30일의 약혼녀 / fiancée for 30 days / the fiancée on the 30th / the 30 day engagement a woman who went beyond the dimension to not die, han in-seo. duke belesquez, a man who needs a stand-in to avoid unpleasant marriage. romance between the two, entangled by necessity and contract, but destined to love.