Kurama paused briefly in the forest to gather a few seeds that he'd been running low on, tucking them safely away in his hair before he went after the rest of the team.

By the time they got to the house, he was a little more concerned. It was not natural to have this much energy in one space, and the only times he'd seen that much energy it had been attached to a portal of some kind, or someone had been gathering energy, usually with ill will in mind.

"Perhaps we should look and see what's in the house," Kurama suggested, glancing at Yusuke with a raised eyebrow. He didn't know what was in the house, but he did know one thing for sure: they would never get anywhere with this case if they didn't enter the house.

((Hm... Well, I like the portal idea, so how about we use that? As for the reason the energy is tainted...

Maybe the portal leads to a realm where there aren't demons or humans, and it's normally kinda cut off from the other realms. But then a demon figured out how to get there, through the human world, and so set up this portal and that's why the energy is tainted? Because a demon's using the energy and it normally wouldn't be?))