The Sumerian civilization was one of the earliest in the world. The King Sumer Story might be about the great kings in Sumer. For example, King Gilgamesh is a very famous figure in Sumerian stories. He was a powerful king, and his story often involves adventures like his quest for immortality. He had a great friendship with Enkidu, and together they faced many challenges.
I'm not entirely sure as I haven't played it specifically. But generally, a visual novel often has a story with characters, plotlines, and different scenarios. It might be set in a world related to 'Sumer' and could involve themes like adventure, love, or mystery.
The King Sumer Story may mainly revolve around several elements. Firstly, the economic aspect. Kings in Sumer were in charge of managing resources like water for irrigation, which was vital for farming. They also had to deal with trade. Secondly, the cultural elements. Sumerian kings were patrons of art and architecture. The great ziggurats were built under their rule. And finally, the element of social order. Kings had to maintain the complex social structure in Sumer, which included different classes of people such as priests, farmers, and artisans. All these aspects together would form the main elements of the King Sumer Story.
Well, the Sumer Island origin story is a bit of a mystery. Some believe it was once part of a larger landmass. As the seas rose, it became an island. The people who first inhabited it may have come from nearby regions in search of new resources. They brought with them their own cultures and traditions which gradually blended to form the unique identity of Sumer Island.
Character development in these light novels is also notable. Despite the protagonist being overpowered, they still grow in other aspects such as emotionally or in their understanding of the world around them. They also interact with a diverse cast of characters, some of whom may be allies, while others are rivals or enemies, which adds depth to the story.
Since I'm not familiar with specific 'sumer rose lemon fanfic', it's difficult to say. But generally in fanfics, themes like friendship, love, adventure could be common. Maybe in this type of fanfic, if Sumer is a place, it could be about exploring Sumer with Rose and Lemon as characters, and themes of discovery could be present.
The environmental factors are also key. If the island had abundant resources like fresh water sources, fertile soil, and rich fishing grounds, it would have attracted settlers more easily. And these resources also determined how the early inhabitants lived and grew as a community.
One popular 'sumer op light novel' could be 'Overlord'. It features a powerful protagonist who gets trapped in a game world and has to navigate through various challenges with his overpowered abilities. The story is filled with interesting characters and a complex world - building.
I'm not sure specifically which 'sumer rose lemon fanfic' stories are out there. You could try searching on fanfic platforms like Archive of Our Own. They have a wide range of fan - created works and you might find something related to this combination.