St. Girls Square Academy, or Garugaku for short, is a school that raises girls who dream of becoming professional star performers. This school is only open to those who have passed the auditions that have been held around the country. Students who attend here dream of standing on the “Girls Arena”, the gateway to becoming professional performers. However, only one team can stand on that stage

Bittomo x Heroine Kirameki Powers! is the 5th instalment in the Girls x Heroine series. The themes of this season are friendship and games. Before Kirari becomes the main character, she one day encounters Himenyan who jumps out of a game console! In reality, Himenyan is the princess of Kirapawa Kingdom that is from a popular sword and magic game “Kiramori”. Afraid of the enemy Makkulala, she ran away. However, the Makkura Empire chase after her getting her into big trouble. The “bibitto” Kirari becomes friends (bittomo) with Himenyan and transforms into the “Heroine of the Sun, Kirapawa Sunny” where she fights against the Makkura Empire. Finding reassuring friends, gathering precious Kirapawa Memories, they’ll win over the battle against strong enemies! Finally, defeating the Dark Witch Makkulala and protecting the world!

In an attempt to conquer the world, the Nuisance World has stolen the Majoka Jewels and have corrupted each into an Akiramestone, which interferes with people's dreams and turns them into an Akiramest. Momoka, an ordinary middle school student, is summoned by Mokonyan, a fairy from the Magic World, to join Magic Warriors Rin and Mitsuki and stop the Nuisance World. Together, as MagiMajo Pures, they purelize the Akiramests back into Majoka Jewels with magic.