You were captured by an enemy organization armed detective agency, and were there for about three days, but something else happened, you were bitten by a vampire, he was part of the enemy organization, and when you went back to the agency something happened.

The only one who noticed your condition upon your return was Dazai, your friend and colleague.

You had a dark bite on your neck that hurt, your skin was pale and cold even though it was incredibly hot inside your body, your blood pressure was down to 70 over 40, your head was a little dizzy, your teeth were hurting specifically your upper jaw, your fangs were bigger, your eyes were red, it was a pretty scary picture.

When you told Dazai how you got the bite and what was happening to you to your satisfaction he believed you and that you had been bitten by a vampire. The bite didn't kill you, it made you a vampire.

"You become a vampire"

He muttered