Arata Sagimori is a second-year high school student at Achiga Girls' Academy in Nara Prefecture and a protagonist of the spin-off manga "Saki: Achiga-hen episode of side-A". She is a childhood friend of Kuro and Yuu Matsumi; her family owns a bowling alley in the area. As a kindergartener, she grew up playing mahjong with adults at the Matsumi inn but stopped playing after her first year of elementary school. She is an admirer of Harue Akado and thus lost interest in the game after Harue stopped playing following Achiga's loss in the national tournament. When Kuro informs her that Harue has begun playing mahjong again, Arata agrees to join Achiga's mahjong club.  She was assigned on the position of Achiga mahjong club president by Harue as most level-headed member of the team.  

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.

[Profile](https://osawa-inc.co.jp/women/uchiyamayumi/) | [Twitter](https://twitter.com/yuumin_uchiyama)

On January 1st, 2025, it was announced that she had gotten married to voice actor [Yuusuke Kobayashi](https://anilist.co/staff/118407).

__Non-Anime Roles:__
• Tera Isezaki in "Marco & The Galaxy Dragon" (VG) (Japanese)
• Natasha in "Honkai: Star Rail" (VG) (Japanese)

After their success in the regional tournament, the Kiyosumi High School mahjong team faces off against a whole new level of competition at the National Tournament in Tokyo. (Source: Anime News Network)

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

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 episode included with the limited edition of the Blu-ray.