Bloody Seven (赤黒七並べ, Buraddi Sebun) is a card game created by the vice-chairman of the Election Management Committee, Tokemichi Choujabaru, at the request of Misogi Kumagawa. The game was created to allow for a social event in which the Naked Apron Alliance and the Student Committee Chairmen could have fun together, under the guise of a competition to decide whether or not the chairmen would join the Naked Apron Alliance.
Bloody Seven is a combination of the games Sevens and Othello, but with some rules changed to make it more complex and to allow for more players. There are sixteen rules for Bloody Seven; all sixteen rules were thought up by Choujabaru.
- After putting the seven's in a line, take turns placing cards next to other cards to match them in numerical order.
- As long as the cards are in numerical order you can ignore the suit.
- The ♥'s and ♦'s are red, ♠'s and ♣'s are black. When you have two of the same colors surrounding (to the sides, top and bottom, or diagonal) another, opposite color card, the surrounded card changes color.
- The game is a challenge between the ♥ and ♦ red team versus the ♠ and ♣ black team. The team with the most territory in the end wins.
- As long as you place a card next to another in numerical order, it doesn't matter if you surround another card that turn.
- Even if you can surround a card, you cannot place a card in a spot where it doesn't connect to another in numerical order.
- Using up your cards is not part of the objectives of the game.
- No jokers.
- You must deal 2 decks. You must deal 96 cards
(48 red cards to the red team, 48 black cards to the black team).
- When four of the same numbers are on the board, you must throw away any cards with that number from your hand.
- Passing is forbidden.
- If you cannot put out a card, you are disqualified.
- The cards of a disqualified player are disposed of.
- When all the members of a team are disqualified, then the other team wins.
- You cannot discuss among your teammates.
- The player designated by the roulette will need to put out a card. It is possible for one to put out cards repeatedly.