Shikkoku no Sharnoth -What a Beautiful Tomorrow-

The year is 1905 in the capital of the British Empire, the Engine City London, where the air is so thick with smoke that a mere glimpse of the blue sky is considered a miracle. The protagonist, Mary Clarissa Christie, is a girl living by herself while her mother works abroad. She attends university with her friends, Angelica Derleth and Charlotte Bronte, and lives a peaceful life. (vndb.org)