Yumeko challenges Terano Totobami to a gamble for Student Council presidential election votes and they agree to play a game called the "Greater Good Game" presided over by Rumia Uru. The game involves choosing whether to place coins in a Personal Bank Box for their own gain, or into a Tax Deposit Box which will increase coins for all players. The players agreeing to participate are Itsuki Sumeragi, Miroslava Honebami, Yumeko Jabami, Ibara Obami and Kaede Manyuda, and they deposit their coins in that order...