As long as she wants

There were several points where Maki thought about getting up she was too relaxed to even attempt it.

Tens of minutes passed by as Maki sat there, the passage of time eluding her.

She eventually thought about her friends. "Those idiots are stuck in class while I get to relax in here, hehe... That's what they get for being a bunch of dumb..." Maki's speech to herself was cut off by a loud surprising sound that she had heard everyday while she was enrolled here.

The school bell.

"... asses..." Maki finished her little speech, shocked about how much time had passed, her head quickly turning so she could see the clock in a vain attempt to convince herself that she was hearing thing but alas, she saw that the time had come for class to end.

This waa quickly followed up by the sound of a large amount of footsteps and chatter to ech through the hallway that Maki had just came through and was planning to go back through to get and clothes.