Ai and Kiyo
The boy tries to run, but Ai Kamijou was far, far too quick for him, and getting away from Ai was about as easy as attempting to play one of those weird carnival games, blindfolded, in the dark, with loud irritating rock playing in your ears constantly while standing on a constantly-rocking seesaw on water. Before he can dash away, Kiyo completes the blockade, and you both chaperone him slowly to a corne near the door, just conveniently away from the the prying eyes of the receptionist or cameras.
The boy seems to be panicking at Ai, specifically.
"H-hey, w-what are going to do to me? I-I'm just here to visit someone, I swear!"
Ragnar
Haru frowns.
"They always do that around here, unless you've told them you're coming to visit someone."
Ito
The ladder is rusty and a little creaky, but Ito manages to lower himself onto the floor below without breaking the ladder or getting himself too dirty.
The room is dimly lit by the aforementioned lightbulb. It smells faintly of musty basement (which, to be fair, it is), the faintly flickering lightbulb making out a hard, concrete floor and a rusty door across the room from you. The floor is surprisingly clean and free of dust, except for a small, broken bunch of glass shards near the door.
Haruko and Amelie
The moment Amelie calls out, the eyes disappear and, as quick as lightning, right before your eyes, the bush stands up and runs away. In broad daylight. In the middle of a city.
Assuming you aren't dumbfounded by the appearance of a living bush with legs, you could give chase or leave it be.
Sato and Agatha
Okay. You two should probably meet up with the others. Spica's off handling a Zoanthrope near our base, so I'll go join her there; don't worry, she's got it on her own, she told me to tell you to keep handling this. It's the only lead we've had so far on the origin of the Zoanthropes.