When the characters in Conan exchanged souls... There were four people who exchanged souls with each other. A pure red cube is exchanged with a pure black cube that puts a death flag on the pure red cube after giving it a shrinking potion. A red player who had been an undercover agent on the black team was exchanged with a red player who was still an undercover agent on the black team and had a huge hatred for the former. Notes: (1) It is just a soul exchange, the official CP will not be removed. (2) This article is slow to develop. It is the first time the author publishes an article. It is very likely that he is a novice Mary Sue, Tom Sue, Jack Sue... If you don't like it, don't criticize it. The author cannot withstand the blow. Thank you. (3) The author is a student dog + a clawless robot dog. I am not sure whether I can finish it (I might get stuck after writing two chapters, really), and the update time is uncertain.