Is it even possible to have more than a single Guardian Demon/ess, 1 for day, 1 for night?

Okay, I'm not much in "reality" but in the astral planes I don't think I'm a push-over, I say this but everytime I see those ANNOYING Gray cockholes I try kicking the shit out of them but they're just energy, like a mass of tiny pockets of pure energy, I can clearly see the presence, it's like...