When 15-year-old Rihito falls in love, an ancient vampire who craves 18-year-old virgin blood must protect the teen's virginity at all costs.<br>
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(Source: Netflix)

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The story begins with a 450-year-old vampire named Ranmaru, working part-time at an old public bath. He desires the blood of an 18-year-old virgin, and so watches over the growth of 15-year-old Rihito, the son of the bathhouse owners.

Haruhiko Tatsuno