Student Council member Sakura Miharutaki faces off against a gamble crazed, unruly student. Mary’s scheme backfires when an unexpected guest shows up.

On the brink of becoming a house pet, Mary must find a way to earn money. Trust is on the line when she and her friends attend a “coupling party.”

With a traitor in their midst, Mary struggles with trusting her friends. Meanwhile, the opposing boys' team argues over whether to rejoin the game.