Responses
I think it's planted by Limon himself, if you reread the chapter you'll see Limon's dialogue that he can't come with Inferna to the demon realm so his little self will do.
tldr limon knew this might happen so he cloned himself and sent that version to the demon realm to wait for inferna
Oh, alright. That's good then. Thanks guys!
Please, can someone who understood properly tell me if the kid Limon is really Limon or if it's a clone planted by the fake mushroom and the demon lord