During the period of the collapse of the Ottoman Empire, a woman who reluctantly went to a gloomy Istanbul mansion as a bride, and the mysterious owner of the mansion, will go on a journey to the dark secrets of the past together.
The life of Osman Bey, the son of Ertuğrul and the founder of the Ottoman Empire, as he established and controlled it, facing internal and external struggles against Byzantium and the Mongol Ilkhanate.