turned someone into SCP-151-D. 151-D

Dr. ███████: "So, Agent ███████, care to explain your actions?
SCP-151: "K."
Dr. ███████: …
Dr. ███████: "Well?"
SCP-151: "K."
Dr. ███████: "I beg your pardon?"
SCP-151: "Please refer to me as K."
Dr. ███████: "Why K?"
SCP-151: "It is the closest analog you have to the first letter of my name."
Dr. ███████: "According to these records, Agent ███████, none of your names begin with that letter.
SCP-151: "I am not Agent ███████, he was just the unlucky soul who fit into my plan."
Dr. ███████: "And what plan was that?"
SCP-151: "Wait until someone with access to the necessary objects used
SCP-028, and gained access to knowledge esoteric and vague enough that it
would not be noticed initially. Then plant instructions in said individual to have
them create a suitable body for me to inhabit."
Dr. ███████: "So, what are you?"
SCP-151: "Extremely bored. Want to play chess?"

Subject refused to respond to further questioning, interview terminated.