__Height:__ 191 cm

Franken is the leader of a gang of delinquents at [Rihito's](https://anilist.co/character/329314/Rihito-Tatsuno) school, and the older brother of [Aoi.](https://anilist.co/character/329315/Aoi-Shinozuka) He uses a screw as an earring, which lead to his nickname. He is willing to fight others for the sake of his juniors, and despite being a delinquent he has never used cigarettes or alcohol. [Ranmaru](https://anilist.co/character/329313/Ranmaru-Mori) quickly recognizes him as a virgin. 

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.

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>
<br>
(Source: Netflix)

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Ken Shinozuka