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Bibi created a topic of Ordinary Person A

I'm only at chapter 33 rn but I have a suspicion that the ML wasn't being honest when he said that the MC can't guide other espers and its just a ploy to keep MC to himself lol.

Why else would other espers be able to tell he's a guide when they touch him? And why else would the ML be anxious about the bureau and ppl teaching him guiding skills?