Is that the residence of those old men?

Possibly.

Kappa and mountain spirits were attacked by some people.

We don't have an obligation to fight Kappa's enemies, but

We can't leave them to the mercy of those indiscriminating geezers.

So proud of yourself...

I bet you're just after the material for a gaudy killer article.

That's fine, but don't get licked, okay?

Eh?

That's right.

According to victims' testimonies...

Those old men seem to be infected with some kind of bio-weapon, or a virus.

Virus weapon...?

An evil mega-corporation went bankrupt, which lead to an outside virus spreading to Gensokyo.

The name of the virus is ZCK, which stands for...