@linkhuesitos15
That's because information-in charge is the real Kumoko. The other wills are based on some traits of her personality.
Not really. All parallel wills, regardless of when they were created, were the real Kumoko, with no difference or hierarchy among them... until the others were contaminated by eating Mother's soul. Only then did they stop being "the real Kumoko", and Information-in-charge, the only one who stayed in the main body, remained "the real Kumoko". This was pretty much spelled out in both the WN (176 - Spare body talks) and LN (volume 5 chapter 2, volume 6 chapters 1 and 4).