Degradation over time

By the way, what brings you here today?

She said she's looking for a kotatsu that runs on...electricity?

"Electric kotatsu", huh...? I do have it, but about the all-important electricty?

That's easy!

I, who came from the future, have much more knowledge and experience than that modern person there.

Oh ho ho ho

Ho ho ho ho

Is she really you?

Ahhh...

I don't want to think about it...