I don't have enough information to say exactly who Miu Sakamoto is in this context. They could be an author, a storyteller, or someone involved in creating this 'never ending story'.
Sakamoto and Kouta are likely characters that fans have created a relationship for in fanfiction. They could be original characters, or perhaps characters from an existing series that the fanfiction writer has chosen to pair up in a new and creative way.
The 'Sakamoto Days' novel is mainly about a former top - tier assassin named Sakamoto who has retired and become a fat, unassuming man. But his past catches up with him, and he gets dragged back into the dangerous world of assassins. It's full of action, interesting characters, and unique fight scenes.
Well, 'kono aozora ni yakusoku wo visual novel' could potentially tell a story where the blue sky serves as a backdrop for the plot. Maybe the promise made in the title is between the main characters. It could be a story of growth, where the characters are bound by this promise and their experiences under the blue sky shape their development.
The main character is Sakamoto, of course. He's the ex - assassin. And there are other assassins who play important roles as well, like Shin. They interact with Sakamoto in various ways, either as opponents or sometimes as reluctant allies.
A visual novel is a form of interactive fiction. Regarding 'kono aozora ni yakusoku wo english visual novel', it might tell a tale full of emotions. The 'aozora' (blue sky) could be a symbolic backdrop for the story. The 'yakusoku' (promise) is likely a key element that drives the characters' actions and the development of the plot. It could be about young characters who make a promise on a beautiful day under the blue sky and then face various challenges and adventures as they strive to keep that promise. Since it's in English, it allows English - speaking players to fully immerse themselves in the story without language barriers.
Typically, light novels can be recognized by their relatively fast - paced storytelling. They usually have a good balance between dialogue and description. For akira sakamoto's light novels, if they are like most in the genre, they may have engaging plot twists and characters that readers can easily empathize with. This can make the reading experience exciting and immersive.
Since there's not much information given about 'miu sakamoto the never ending story', we can only make some general speculations. It could be a personal project of Miu Sakamoto. The 'never ending story' part makes me think of something that has an infinite quality. It might be a story that explores themes like time, eternity, or the cyclical nature of things. For example, it could be a story set in a magical world where time doesn't function in the same way as in our world, and events keep occurring in an unending loop, with characters constantly evolving and facing new challenges without a true end point.