Another possible storyline is Gilgamesh having a conflict with an ancient evil that has resurfaced in the Marvel universe. Maybe an old enemy from his own time that has found a way to return. He would then have to use his powers, which could be enhanced versions of his historical feats in the Epic of Gilgamesh, to defeat this enemy and protect the modern world from destruction.
In Marvel fanfiction, Gilgamesh is often more of a superhero - like figure compared to his original mythological self. He may have enhanced physical abilities and be more directly involved in modern - day battles. For example, his strength might be on par with the Hulk in some stories.
Gilgamesh can be portrayed as a powerful and haughty figure. He could walk around the world of Danmachi with an air of superiority, looking down on the 'lesser' adventurers. His flamboyant style and his love for grandeur can be emphasized, like always wearing the most elaborate and expensive armor.
In the story, they start as sort of rivals. Gilgamesh is a powerful king who is a bit wild, and when Enkidu is created, he challenges Gilgamesh. But then they become friends. They share a deep bond that is tested through various trials. For example, when they face Humbaba, the demon of the cedar forest. Their relationship is complex and full of mutual respect in the end, and Enkidu's death deeply affects Gilgamesh.
The story of Gilgamesh is an ancient epic that follows the adventures and quests of the king Gilgamesh. It explores themes of friendship, mortality, and the search for meaning.
The Epic of Gilgamesh is not classified as a novel. It predates the concept of the novel and has different characteristics and structures. It's more like an epic poem or mythological tale.