"That leaves a scar behind. Emotional texture that shaped that person's life during the time they were sad. I'm not just consuming raw emotions. I eat the significance of those emotions too."

Koishi was looking thoughtful (and perhaps salivating a little.) "Fear is good too. I'm supposed to be a predator, not a scavenger. So I guess that makes sense. But I prefer having human friends and that's kind of hard if I'm known for attacking people. But it's fine if they're already dead since they've moved on and they're not using their body for anything anymore." A very pragmatic outlook. If a little morbid.