One common theme is friendship development. Given their different backgrounds and personalities, stories often explore how they become friends. For example, Denji's more straightforward and sometimes naive nature might contrast with Kobeni's more timid and cautious self, and the fanfic could show how they bridge that gap.
Sure. You can start by looking on fanfiction.net. There are often a variety of fanfics featuring this pairing. Some might focus on their adventures together in the unique world they are from, exploring how their different personalities interact and complement each other during battles or in day - to - day situations.
Asa and Denji found themselves in a strange new world. Asa was initially cautious around Denji, but as they faced various challenges together, like fighting off some odd creatures. They began to understand each other better. Denji's straightforwardness and Asa's determination complemented each other. Eventually, they became good friends, and their adventures continued, with each day bringing new surprises and a stronger bond between them.
Yes, there are quite a few. You can start by looking on popular fanfiction websites. Some might focus on their relationship dynamics in the context of the original story's world, exploring how their different personalities interact.