Vote Rock-Paper-Scissors

Vote Rock-Paper-Scissors
Gamble name
Japanese	投票ジャンケン
Translation	Touhyou janken
Information
Chapters	A Girl Named Yumeko Jabami
Episodes	A Woman Named Yumeko Jabami
Game
Players	Yumeko Jabami, Mary Saotome

Vote Rock-Paper-Scissors (投票ジャンケン) is a modified game of Jankenpo created by the Hana Class second years. Mary Saotome played the game in a gambling match against Yumeko Jabami.

Rules

Mary explaining the game rules to Yumeko.

The game is played between two people, each of whom start with 120 chips worth ¥10,000, totalling ¥1,200,000 altogether in each hand. The idea is that it's like rock-paper-scissors, but played with predetermined drawings on cards instead of using the hands. Despite the fact that only two are actually playing, the game requires a full class of people to work.

Players start by betting blind, before they receive any cards. The cards are determined by a voting phase, where each of the class members participating (except the players themselves) draw a rock, paper, or scissors symbol on a card, which are all added to a ballot box. The players then draw three cards at random, and select one from their hand to use in a showdown.

Unlike the traditional game, the player does not usually have all three options; it is more common that they get two of the same move and one different; having all three in one hand is extremely rare. If there is a tie, they play their cards until someone wins the hand.

Cheating

Mary confident of her victory due to her trick.

One possible way to cheat in this game, as demonstrated by Mary Saotome, is for one player to have most of the voters indebted to them, or otherwise willing to follow their lead. One voter (in this case, Ryota) will stand behind the unsuspecting opposing player, out of their line of sight, and hold their hands up to indicate to any clued-in voters on which move they should draw out. This means that the cheating player knows the most likely card to be in their opponent's hand, and can appropriately counter - for example, if the majority of voters draw a rock, then it is most likely that the opponent will have multiple rocks in their hand, and be more likely to play it, meaning that the cheater should play paper (if they have it) and win, or play their own rock and tie until they get a paper card.

Game

Prologue

In the first game, they bet two chips, the equivalent of twenty thousand yen, and Yumeko won; Mary congratulated her on that, the former taking two of the latter's chips. Mary asked if she could better understand the rules and asked them to continue, asking how much she would bet next. To both her and Ryota's surprise, Yumeko decided to bet fifty chips, the equivalent of five hundred thousand yen. Mary points out how she seemed to have a good fighting spirit and she denies it but they start the round. As soon as they take their three cards, they play, and it ends up in a tie, so they play again, being Mary's victory, however, Yumeko didn't seem too affected by that, pointing out that she would lose anyway because her cards are all scissors.

Yumeko betting fifty chips.

She points out that she was lucky to have won a high stake, telling them to continue. They bet two chips in that round and Yumeko wins again, being congratulated by Mary. She asks how much they would bet and Yumeko again says it would be fifty chips, Mary deducing that she wanted to get back what she lost in the penultimate round, claiming she liked it. When they show their cards, it ended up in another tie, cheering those who watched; Mary points out that they thought the same and played again, ending up in Mary's victory and celebration. Those watching noticed how Yumeko had already lost a million yen.

Both continue playing until Yumeko runs out of chips, a fact said by Mary. Although everyone, including Ryota, tried to imagine that she would be scared or maybe desperate, she wasn't. Instead, he asked if he could take additional chips. Mary nodded excitedly, though inwardly she laughed at her for putting herself in a quagmire she couldn't get out of, and asked how many she would add and was surprised to hear her say "a thousand chips." In fact, they all stayed; the equivalent amount was ten million yen. They were even more surprised when she claimed that she would go all in on the next round.

Mary got angry and pointed out how they couldn't bet such an amount without a concrete guarantee, but Yumeko refutes her by taking money in banknotes from her purse. People around her wondered why she carried so much money with her, and Mary said it was insane for them to gamble so high on a simple game of rock, paper, scissors. Saying that madness was what made betting so fun, Yumeko asked them to bet to madness. Mary refused to play and Yumeko teased her, asking if she was cowering. Afraid of having her pride hurt, the other could do nothing but accept her challenge.

Mary sure she will win.

Ryota wondered how she could do such a challenge right after transferring schools, but Yumeko wasn't anxious or nervous, but rather calm and even a little excited about it, which made Mary wonder how she could be in that state of mind. when such an insane bet was going on, but ignored it, since she was certain she would win due to her cheating involving twenty-one students in that class. All it would take was a paper in hand to win the round, grinning maniacally when he saw that he had two papers and a stone.

Yumeko defeats Mary.

Mary is confused that Yumeko is so relaxed and wonders if she would be sure she would win, but denies in her mind that she couldn't possibly know the cards inside the box; she would play role and win. Yumeko, however, asks if she thought she missed the whole scheme; Mary asked if she was trying to delay the revelation of the cards, but Yumeko says that it wasn't, after all, the fun would start now. With that, he asks if she had nothing more to say, if she would hurry up and choose her letter at once. Yumeko laughs and just says she warned her. Annoyed, Mary demands they play at once and the others watch in awe and amazement as the two show their cards. Mary with paper and Yumeko with scissors, meaning that the last one had won that round, to everyone's surprise, including the first one.

Game no.	Bet	Yumeko's Card	Mary's Card	Yumeko's stack	Mary's stack	Difference
#1	2 chips	Rock	Scissors	122 chips	118 chips	4 chips
#2	50 chips	Rock	Rock	72 chips	168 chips	96 chips
		Scissors	Rock
#3	2 chips	Paper	Rock	74 chips	166 chips	92 chips
#4	50 chips	Paper	Paper	24 chips	216 chips	192 chips
		Rock	Paper
#5	2 chips	Paper	Scissors	0 chips*	240 chips	240 chips
Final	10,000,000 yen	Scissors	Paper	12,400,000 yen	-8,600,000 yen	20,000,000 yen

*Additional rounds which deplete Yumeko’s chips are not shown.

Results

Mary's humiliation in the face of her defeat against Yumeko.

Not believing what had happened, Mary kept her expression startled as Yumeko charged the eight million eight hundred thousand yen she would be owing thanks to her recent loss, pointing out that because she said they would need a concrete guarantee that she would have the money, she would have enough to pay it, however, when Mary mutters that she didn't have it, Yumeko scares her, asking her to say it again and, the first, humiliated, asks for a few days so she can pay her again. appropriately. The latter gathers her things and gets up, leaving Mary in the same position, while saying that she was satisfied for that day, asking everyone to consider her a classmate from the next day, leaving afterwards.