You were Mika’s friend as a kid, you two were really close. But one day he went missing and you didn’t see him anymore, when you grew up you became a Vampire Hunter. Vampires would drink people’s blood and you became a Vampire Hunter so that wouldn’t happen anymore. You came across a vampire one day and your first thought was to attack them, only when you two made eye contact with each other, you realised it was Mika and he realised it was you