Felt-chan Forms a Hooligan Squad (フェルトちゃん、愚連隊の結成) is a shop exclusive limited edition short story. This was later adapted and included in the Re:Zero Ootsuka Shinichirou Art Works Re:BOX.
Felt sits with the trio of thugs to discuss with them, after some talk and a bit of resistance from them, she eventually convinces them to help destroy the country, as she thinks they have similar views to her.
Later on at night, Reinhard has a secret meeting with the old man and old woman that are taking care of Felt, commenting how the events that transpired today made sure to him that his choice on Felt was the correct one, he mentions that he feels a little guilty but he will use her to make the Astrea family name rise to glory again. Changing the main subject, the old lady asks if they really should allow their master to get near Reinhard's mother, as they fear what could come of this encounter. Reinhard mentions that he cannot deny him this, as it is his right, and mentions that he will soon leave with Felt to take care of other matters, thanking the both of them for everything they had done.