First afterschool

Her eyes sparkle with arcane gleam as her conscience is expanded, a magical circle on the ground encircles her, depicting a roll of this symbol in its border:

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In a burst of inductive reasoning, she links all pieces on her head, in an instant, the glasses on her fingers the key to all that:

Rikishi's power isn't invisibility, but making things vanishing from people's mind! That's why he could disappear from Yasuo's and Katsuya's memories, along with the stolen pieces... Hanami also notices there's a limit to the amount of things he can make vanish at a time. That she inducted from his first appearance, where he claimed to have X-ray vision, which was in fact him vanishing the girl's clothes from his own mind. In that occasion, he mentioned a limit of two objects he could 'look through'; him wearing glasses reducing that to just one.

Finally, she concluded that, to fully disappear, that is, both his body and clothes, he must be at his limit, and that's why he shortly reappeared after passing behind Konomi, as his power only works on the closest thing between the vanished object and the person whose perception is being tampered by. Thus, apparently, any obstacle more substantial than air between her and him, would make him reappear.

As the girls run, following Hanami, Lin Jing stays back, and when out of anyone's view, casts a spell on herself, strengthening her mental resistance

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On the meanwhile, the pursuers, following the dim tracks Rikishi left, mainly spots of grounded grass, they see themselves going to the same shopping mall Konomi was heading to.

And then, Hanami spots a glimpse of Rikishi, through the glass wall on its entrance! But when she circles it to enter, he was instantly gone! I quick check showed she could see him clearly through the glass, but not without it.

Rikishi, on the meantime, was walking idly through the mall, a relieved look on his face.

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