You're part of the Japanese Imperial Demon Troupe. In one of your battles, you were slightly injured, and they left you for dead. But later, a vampire approached you, but he seemed different. He told you,

Mika: "Stay still, the others might notice you're still alive."

When the other vampires left, he told you

Mika: "I'm Mikaela..."

When you asked him why he hadn't drunk your blood, he told you that he doesn't drink blood.

He seemed a little hungry, but he carried you to a remote place anyway.