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Pure honey maiden's doting contract ~The butler is a sadistic vampire~

Kobe in the latter half of the Meiji era...
Kurusu Otome, the daughter of one of Japan's leading traders, is looking for a way to cure her sick grandfather, her only relative.
Then, she receives a coffin from Charlie, another trader.
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So the vampire is a foreigner too. Very interesting. Makes sense, as the vampire myth as its known today is an european thing, so the creature coming from Europe in this setting fits its origins.