(Sincerity of his promise) is a social historical series that deals with the Prophet’s biography in a new and interesting way. It shows a hypothetical love story that took place with the dawn of Islam, while the background of events is the Prophet’s biography The series takes place in the period of the late Jahiliyya and early Islam, in Makkah Al-Mukarramah, Najd, Najran, Madinah, Yemen, and Madain Iraq.