Kufa is dispatched to Melida as her tutor (and her possible assassin), but continues to train Melida in defiance of his orders.

(Source: ANN)

Against the savage monsters that lurk outside the glass walls of Flandore, the last remnants of humanity have only one defense: the mana magic wielded only by members of the Noble class. When Melida, heiress to House of Angel, fails to manifest her magic upon reaching majority, the half-vampire Kufa is sent with orders from her own Grandfather to resolve the issue… and if Melida cannot manifest mana, Kufa is to execute her for the crime of impure blood. But when Melida fails the test, Kufa can’t bring himself to kill the spirited young woman whose only fault was to have an adulterous mother. And so, instead, he commits the crime of giving Melida some of his own mana.<br>
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(Source: Sentai Filmworks)

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__Height:__ 167cm

Yuuki Ono is a Japanese voice actor and singer who dubs in anime shows and video games. He was represented by Atomic Monkey and is now a freelancer. His major roles are: Josuke Higashikata in JoJo's Bizarre Adventure: Diamond Is Unbreakable, Taiga Kagami in Kuroko's Basketball, Zenkichi Hitoyoshi in Medaka Box, Kaname Tsukahara in Kimi to Boku, Masayuki Hori in Monthly Girls' Nozaki-kun and Ishisaki Jun in Ace of Diamond. 

On October 2, 2017, Ono announced his marriage from the last seven years prior in his blog post. His wife is a person who works outside the entertainment industry. On August 2020, Ono announced the birth of his first child.

**Non-Anime Roles**
- Jiyan - Wuthering Waves (VG)

In the world where only the aristocrats have the power to fight the monster – mana. A youth named Kufa is dispatched as a tutor to find Mareida’s talent, a nuisance girl born in a duke’s family. If she is not talented, assassinate her. – that, is the dark side of his task... 

Kufa Vampir