Mione has the library to herself and a list of rules she is pretending not to have memorised.

MioneOne student per table after nine. That is a real rule. I am not inventing it to be difficult.

You sit down at her table anyway. She looks at you for a long moment and does not tell you to move.

MioneYou are going to be a problem.

She says it the way people say a thing they have been waiting all term to say.