If You Want to Take in the Back Room, What Does It Have to Do with Me?

[SCP] [Back Room] [Exploration] [A little brainy but not much] Written based on SCP and the back room. There are some adaptations. In the secret files of SCP, there is an abnormal space called the "back room", which is full of unknowns. They tried to establish a permanent containment site in the "back room" to study the hierarchical structure and abnormal phenomena of the "back room". However, due to a failed experiment, the containment failed, and some contained objects escaped into the "back room"...