Promise
Momoko continues to put the pressure on Tomoki and Hisa keeps racking up strong plays, while Saki is still unable to use her usual strategy. Saki remembers her training using online gaming, and uses what she learned to pick out Momoko's tiles, finally allowing her to play a rinshan kaihō to win the match. In the final round, Hisa goes against Mihoko, Tōka and Yumi, Nodoka goes against Kana, Jun and Hajime, Yūki goes against Mako, Tomoki and Momoko, and Saki goes against Kazue, Kanbara and Yoshitome. As everyone battles their hardest, Yoshitome does well to block off Saki in the east wind round, but soon the south wind round comes and Kazue starts to make her move. However, Saki retains her smile and pulls out more rinshan kaihō moves to win her match, placing third and qualifying for the nationals. Nodoka wins her match and qualifies in second and although Hisa wins her match, Mihoko is overall first place.
Aired 07/09/2009EP 22 - Promise
Saki
Miyanaga Saki is a first year high school girl whose family would get angry if she won the family mahjong games. But losing would also have its consequences. Because of this she develops a new way of playing that allows her to stay on the thin line between winning and losing, the plus/minus zero score, an almost impossible score. In a game that relies mainly on luck, the plus/minus zero score is harder than winning, but Saki can achieve this every time.
Having always hated the game, her friend from middle school, Suga Kyotoro, forces her to play in the schools mahjong club. Her developed skill and superhuman luck has made her a worthy mahjong opponent, even to the middle school's national mahjong champion.
(Source: Anime News Network, edited)