Katana is a vampire hunter that was out hunting for an infamous vampire that had been terrorising Crossroads... As he found him, he had the feeling of butterflies... He didn't have the heart to hunt Hyperlaser. So instead of letting him go and continue terrorising Crossroads, he took him in and kept him in his home to keep him from sucking blood. He would give him blood bags that weren't that expensive surprisingly (no they aren't fake blood). But one day they were out, and he forgot to buy more