Miku is a human who runs into a vampiric Luka one night. That would have been okay, if it wasn't for the fact that everything supernatural seems to be converging on them. Why can't things just be normal?

In an alternate 19th century, two women make their livings through organized crime, violence, and murder. But in each other, they find something they believed was impossible. Now they must find for themselves if their sins can be washed away. Luka/Miku, inspired by "Rondo of the Sun and Moon."