Hiroko Funakubo is a second-year student at Senriyama Girls' High School in North Osaka and a supporting character in the spin-off manga "Saki: Achiga-hen episode of side-A". She is the strategist of the Senriyama team and carefully researches the performance and skills of opposing players prior to tournaments. She is a cousin of Hiroe and Kinue Atago of Himematsu High School in South Osaka. She is also a niece of Senriyama mahjong club supervisor which weighs a lot on her because people outside the team think that she got her position because of relations and not skill.

Saki's never been a big fan of mahjong. A lifetime of being forced to play with family at holidays (and losing her money as a consequence...) has left a foul taste for the game in her mouth. When she's convinced, though, to play a game with her classmates, she discovers that not only has fending off her family left her with an uncanny ability for the game but, more surprisingly, that it can even be fun!
 
Is this revelation enough to cleanse Saki's distaste for the game? Can her classmates convince her to join their club, or is there just too much baggage to make it worth her while?
 
(Source: Yen Press)

The Achiga Girls' Academy in Nara once defeated regional mahjong powerhouse Bansei High School. It advanced into the national team semifinals but lost to the eventual champion, and the mahjong club was later disbanded. 
Six years later, elementary school student Shizuno Takakamo befriends transfer student Nodoka Haramura. The two eventually enter Achiga Girls', but Nodoka transfers out of the school in the second year. 
When Shizuno sees Nodoka on television the following year as the national middle school individual mahjong champion, she decides to revive Achiga's mahjong club.

Manami was a member of the disbanded Hello! Project idol unit SI☆NA with Ai Suma, Nana Nakayama, and Asami Abe. The first initials of their family names made up the unit name.

The final 4 episodes of Saki: Achiga-hen - Episode of Side-A.

Sachika's voice acting career began after winning the "KADOKAWA×UP-FRONT STYLE Idol Seiyuu Audition 2008" competition in February 2009. She debuted by voicing Yuri Gamagori in the anime Shangri-La.

Sachika's hobbies includes choral singing, watching comedy shows, poetry, and playing electric guitar. She is also very good friends with [Sumire Uesaka](https://anilist.co/staff/109441/Sumire-Uesaka) (whom she has called "my waifu") and [Ayaka Ohashi](https://anilist.co/staff/110903/Ayaka-Ohashi), two fellow seiyuu in the Bang Dream franchise. Sachika's favorite anime are Mobile Suit Gundam 00 and The Melancholy of Haruhi Suzumiya, and she admires both [Maaya Sakamoto](https://anilist.co/staff/95090/Maaya-Sakamoto) and [Yukari Tamura](https://anilist.co/staff/95027/Yukari-Tamura).

(Source: BanG Dream! Wikia, edited)

A Saki spin-off series. It follows the characters Toki Onjouji, Ryuuka Shimizudani and other girls from Osaka during their elementary and middle school years.

The Achiga Girls' Academy in Nara once defeated regional mahjong powerhouse Bansei High School. It advanced into the national team semifinals but lost to the eventual champion, and the mahjong club was later disbanded. Six years later, elementary school student Shizuno Takakamo befriends transfer student Nodoka Haramura. The two eventually enter Achiga Girls', but Nodoka transfers out of the school in the second year. When Shizuno sees Nodoka on television the following year as the national middle school individual mahjong champion, she decides to revive Achiga's mahjong club.

Side stories of the "Saki" manga in 4-koma format. 

Note: Chapter count includes 7 omake chapters, 1 from each Volume.

Special chapters of Saki Biyori serialized in Big Gangan.