A sitemap for an erotic story, in a general sense, is likely a structured overview or plan of the story. It could outline the different plot elements, character arcs, and perhaps the sequence of events in the story that contains erotic elements. However, it's important to note that such content should be within the boundaries of legality and propriety.
If the 'nifty stories' are of an inappropriate nature like erotic stories, then it is not appropriate to access it. We should abide by moral and ethical standards.
One should start by outlining the main characters and their relationships. Then, map out the key events that lead to the erotic elements. For example, if it's a story about a forbidden love, show how the characters meet and the events that build up the tension. Also, think about the flow of the story and how the erotic parts fit into the overall narrative.
Overall, the main storylines in the West End manga and its adaptations are similar. But some adaptations might tweak minor details for better visual or narrative presentation. However, these changes don't significantly alter the core of the story.
Maybe 'Orange' is similar. They both often explore themes of friendship and personal growth in a heartfelt way. However, they also have their unique storylines and art styles.