Fate/mahjong night 聖牌戦争

Synopsis

Fate × Mahjong!! The Holy Tile War, an intense battle royale between seven mages (Masters) and heroic spirits (Servants) fight to the death in mahjong over the all-powerful wish-granting artifact, the “Holy Tile.” which grants any wish. There is only one Holy Tile. If you desire a miracle, then prove you are the strongest at mahjong with your own power.