Manabi Straight! follows the lives of a group of young high school girls living in the year 2035 while they attend the all-girl Seioh Private High School. Since the birth rate has dropped dramatically, schools are being closed down due to the sheer lack of students available to teach. Morale in schools has dropped dramatically, and Seioh is no exception. The story begins when the main character, Manami Amamiya, transfers to Seioh. After some initial hijinks involving a futuristic scooter and a swim meet, followed by an inspirational school song performance, she is inducted as the student council president. The story that follows pertains to Manami working with Mika Inamori, the only other student council member, and three other classmates named Mutsuki Uehara, Mei Etoh, and Momoha Odori, in student council matters. After some remodeling of the student council room, Manami and her friends set forth to plan for the upcoming student festival. (Source: Wikipedia, edited)

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.

Upon her return to Japan after a two year study break in Paris, Ichigo Amano is met with news of Team Ichigo's separation, as each of the Sweets Princes takes a different path toward their dream. Now in her first year of high school, Henri Lucas has a project in store for her, enlisting the help of Ichigo, Makoto Kashino, and new members Lemon Yamagishi and Johnny McBeal to give rise to a new Team Ichigo. As the four work together on this project, Ichigo and Makoto continue to grow closer, though Johnny and the unrelenting Miya Koshiro will not idly sit by; with Johnny's eye on Ichigo and Miya still after Makoto, it definitely seems like love won't come easily. With Ichigo's time at St. Marie Academy, she is now ever closer to her dream of starting her very own pâtisserie. However, she will soon realize that it takes more than just making delicious sweets to open up a shop.

This is a remix, theatrical release of the first half of the Appleseed XIII series.