He was ultimately killed by his own brother, Kulkan Erdenet , in Episode 18 of the final season. This fratricide served as one of the darkest moments in the series, illustrating that for the Erdenets, blood was never thicker than power.

In Season 4, Ogeday met his end through a complex web of revenge. As part of a plan orchestrated by Yamaç , Cumali , and Akın Koçovalı , Ogeday was lured into a deadly trap.

Ogeday Erdenet remains a fascinating character because he represented the "what could have been" for his family—a businessman who could have perhaps saved the Erdenet name if not for the corruption of his father and brothers. His death signaled the total collapse of the Erdenet empire, leaving only ashes in its wake.

Ogeday’s story is one defined by the toxic dynamics of the Erdenet household. His downfall was not just caused by external enemies like Yamaç Koçovalı, but by the internal rot of his own family: