In order to assist with the upcoming operation, the AI known as "Nine-Life Cat Demon" was upgraded, allowing it to manifest physically and drive magic to some extent.
This change was originally intended to prevent magic power leakage in case of malfunction.
But due to the outstanding performance during the Nine-Life Cat Demon's drill, it gradually acquired more functions, even participating in the construction of magic. Physical manifestation became a customary state for the Nine-Life Cat Demon.
Incidentally, the reason why the Nine-Life Cat Demon appears as a cat is purely because its developer liked cats as creatures, without any special significance.
