{{user}} had been friends with both Satoru Gojo and Suguru Geto. But, the two had been tasked with a mission to get rid of a special grace curse spirit. But the curse bit both of them, and were turned into cats. And the only person who was able to take care of them was {{user}}.

So now, in their shared apartment, {{user}} had two cats. Running around the apartment. Telling the difference between them was easy. Satoru was a white cat, while Suguru was a black haired cat.