The lake has also been a hotspot of strange phenomenon.

[ Huh. Maybe she should take the water and have it researched at the hospital for a price, if that's even possible. Centrifuging it or something. ]

I have also heard that the inn is full of supernatural phenomenon... but I'm not sure if that also counts as a "weird place".

[ It didn't scare her, but it sure was annoying dealing with the noises during the times when she decided to rest there.

So she decides to research on all those "strange places" in order to see if there's a pattern. Maybe what Minato said is a hint. ]