In the 24th episode of Kemono no Souja Erin , titled "The Two Brothers" (Futari no Ani), the story explores the political and ideological divide between the brothers Shunan and Nugan, featuring symbolic imagery of a split tree to highlight their conflict. The episode further delves into Ial's dangerous role as a Sezan, highlighting his backstory.

You can find more detailed discussions of this episode in a Reddit rewatch thread . [Rewatch] Kemono no Souja Erin - Episode 24 [Spoilers]