How do you explain this😭

She was dying and past normal recovery. He (A former demon lord) saved her by turning her human body into a vampire, making her his servant. She now occasionally needs his blood, which is so powerful that just a small amount is enough.

What’s the name of this anime?

sauce : The Demon Sword Master of Excalibur Academy

XD

What's the show's title?

Funny how telling the truth would explain everything properly. I mean the girl is a vampire now...tell that would resolve the confusion...some girls would tease them about the treatment but still