Gen allowed her to have that distance, eyebrows raised in curiosity. He was opening his mouth, about to say something friendly and playful. Such as, if this is an ink bomb, could she let him change into his train-issued clothes first? He didn't like those as much.

But then she turned into an octopus - clothes and all - and dived into the tank. Gen's eyes went very wide, and he couldn't help it. He went forward, looking.

"What?" Gen couldn't see into the ink, though, since it was thick and viscous. "What just happened? Why - is this fun for you? Certainly, being able to shape-shift looks like a good time, if it's something you could do whenever you like to ..."

... Was he speaking to a puddle of ink? Whelp.