I guess Hiei's cat instincts finally kicked in. It may not be a kotatsu, but as long as it's made of warm, it's good for sits.
My grandparent use to have a house with radiant heat under the floor as built. You could always find out were the coils wer closest to the surface by where the cats were sitting. Just a random spot on the floor with a sleeping cat.
It'sh sho waaaarm~Warm FeelingHey... you gonna be cheered up anytime soo.......Well, the important thing is that you like it.