Here’s the story Libra of the Vampire Princess as described by Mikandi Japan and XERO:
Shuma Kusanagi was just an ordinary boy…
Until the day he is suddenly abducted by a mysterious girl named Iris who reveals to him a hidden secret about his birth.
Coursing through his veins, Shuma has a special kind of blood – vampire blood – passed down from his progenitors. Iris is known as a “ringleader” vampire who also has this ancestral blood, too. Her destiny: to “awaken” Shuma.
In his attempt to flee her clutches, Iris pounces on him to finish the embrace! Luckily, at the very last moment, the keepsake ring given to Shuma by his mother emits a blinding light that interrupts her vicious attack. Shuma breaks free and escapes from Iris, but soon realizes something inside him has gone amiss. Could he have become an odd, partially-turned vampire?
Now, many girls are entering his life from different directions and complicating the situation. To make matters worse, he is plagued by an overwhelming impulse to suck… their blood.
Below is Libra of the Vampire Princess opening movie with English subtitles.
Code name: Yu Alexius is an ambiguous entity who loves to talk about anime and Chinese animation in general. An insatiable soul from the Pearl of the Orient, a frustrated writer and a Houtarou Oreki wanna-be. He is a piece of a lunatic and everything crazy.