The host of the engagement agenda depends on whose wife or son-in-law. Marrying a daughter-in-law is usually the man's engagement, because the normal marriage situation is that the woman marries the man's house and the man marries the woman at home. Therefore, the main thing should be the man. If the woman recruits a son-in-law, the engagement is mainly for the woman. Therefore, the host of the engagement ceremony should be the person who marries the daughter-in-law or the person who recruits the son-in-law.