Personally I'd give them a bit more time to shape up before killing them, but at least she's not letting them walk all over her.
I looked for information about yukkuri death.
"If your precious yukkuri dies, you should bury it..."
"No thanks"
It's trash, so I'm thinking of throwing it away. But just then, I found another article.
"You can give a yukkuri that has its accessories removed to another yukkuri as sweets-sweets.
Yukkuri identify each other with their accessories, so if you don't remove it, it will cause mayhem and mental problems which could lead to anti-yukkuritis disease. Please be careful."
"Yukkuri commit cannibalism? If that's so I can just use it as feed..."
Just when I thought of it, suddenly
"Chake id eajy!"
"Hm?"