Years after the Bapheus victory, Osman Bey's children have become beys. As Osman Bey continues his conquest for Bursa, news arrives that Sultan Mesud has been poisoned, sparking a power struggle for the Sultanate.

Bala Hatun, grieving the loss of her child, battles a serious illness. Germiyanoğlu Yakup Bey, who set up a market on the Yenişehir-Germiyan border, survives an assassination attempt marked by a Kayı, raising tensions with Osman Bey.

Vasilis, a hidden enemy, plots to revive Rome amid the search for a new sultan. Osman Bey sends his son, Alaeddin Bey, to Konya following the poisoning news, where Yakup Bey’s daughter also arrives, with Yakup Bey aiming for the Sultanate.

In weakened Konya, irregulars settle in Uçlar. Orhan Bey invites these Sancaksız irregulars to join Osman Bey’s holy war, and this news reaches Yakup Bey’s son, Mehmet. Amidst these events, poet Yunus Emre arrives in Yenişehir, potentially influencing Osman Bey's spiritual life.