[ He taps his chin with a pointer finger, thinking. ]

It depends where the myth originates from I believe. Normal vampires were thought to be demons which possessed their victims, drank their blood and were conceived during the time of witches. Even Russian folklore depicts them as being witches that rebelled against the church. So you can see where the crosses come into play. Being undead, impure creatures of the night also made the cross a mighty foe to them.

Jiang Shi are a bit different, but similar cultural aspects are incorporated into their folklore as well. Like using rice and seeds to impede them.

Oh, I do like how you think. I've never given that any thought before.

A magic mutation? That would explain a lot. Bending the laws of reality to make anomalies like vampires. I don't know if it is that though, albeit it's a very interesting take on it.

Oh! Helios Sprensonne it's been a delight talking to you Haruki. SOS-Brigade? My you must be busy running your own brigade like that.

[ He is amused. You crazy kids, you. ]

And what does this brigade of yours do?

Oh? That sounds like a marvelous club you have there. I must say I do approve.

[ He laughs. Oh you kids and your thinking. ]

I think it's an admirable thing to do. At least for people here who might be feeling the effects of homesickness.