I read an anime a while (long time ago) back. I believe it was a set of crossover short stories or ideas for stories, but not finished. It could even be a story that was abandoned. All I remember is that Kagome lives alone, goes to a new school, dresses in loose clothing (or like a boy) and is mistaken as a boy. She gets sick and on her way home, and after stopping to buy rice balls at a convenience store, passes out in her apartment complex. After she has (or as she was) passed out, she is found by her teacher. He and his lover (a guy) take her in to help (since they don't know what apartment she lives in) and there they fine she is a girl. (The anime that it was crossed over with was a bl one)