Born to the royal family, Pacifica Casull has earned the nickname "Scrapped Princess" after an apocalyptic prophecy foretells her destroying the world on her 16th birthday. Rescued from certain death by a kindly family, she takes shelter with her adoptive older brother and sister, Shannon and Raquel Casull. When news of her survival reaches the ears of the God Mauser's worshippers, they issue her death at all costs, forcing Pacifica to flee for her life. Plagued by threats from the church, the nobility and even the common people, the three siblings attempt to outrun the fate Pacifica is destined to bring, all the while questioning if one girl's life is worth the world's demise. The true nature of the Scrapped Princess, along with the harrowing revelations of the world itself, becomes more and more apparent as the princess' 16th birthday fast approaches. [Written by MAL Rewrite]

Tired of her rural home, recent college graduate Yoshino Koharu is desperate to lead a more exciting life in Tokyo. After a fruitless job hunt, she finally receives a part-time offer as queen of the bizarre "Kingdom of Chupakabura," a rundown mini-attraction in the small agricultural town of Manoyama. However, Yoshino discovers upon her arrival in Manoyama that she was mistaken for a celebrity and the job offer was a mistake. Left with no other options, Yoshino reluctantly agrees to take on the role and aid the Board of Tourism in their efforts to revitalize Manoyama. Determined to bring excitement to the dying town with the help of local residents, the queen enacts a series of projects to highlight the beauty and charm of Manoyama's culture. Sakura Quest delves into the story of a tight-knit community that is struggling to balance change while also maintaining the rich traditions and bonds which define their identity. [Written by MAL Rewrite]

Amatsuyu "Jouro" Kisaragi is a completely average second-year high school student who has two dates over one weekend⁠—with the student council president Sakura "Cosmos" Akino on Saturday, then with his childhood friend Aoi "Himawari" Hinata on Sunday. Sadly for Jouro, both girls proclaim their love for his best friend Taiyou "Sun-chan" Ooga, the ace of the baseball team. Accepting each of their requests for advice and guidance, he is now responsible for helping the two girls win the heart of the same guy. Unbeknownst to his friends, Jouro's friendly and obtuse image is all but a ruse designed to cast himself as the clueless protagonist of a textbook romantic comedy. A schemer under his cheery facade, he makes the best of this unexpected turn of events with a new plan: get Sun-chan to fall for either Cosmos or Himawari and take the other as his own prize. But Jouro's last-ditch effort is threatened by the gloomy, four-eyed Sumireko "Pansy" Sanshokuin, who surprises Jouro with not only her knowledge of his secret personality but also a confession to the true self he hid for all this time. Stuck in this hilariously messy situation, each of the five students must navigate countless lies, traps, and misunderstandings to come out on top. [Written by MAL Rewrite]

According to HMV, the DVD & Blu-ray volume 7 of Ookiku Furikabutte ~Natsu no Taikai Hen~ will include an unaired episode 12.5. Director Mizushima posted in his blog that the special was made because they couldn't put the original manga episodes happened between the episode 12 and 13 within the TV series.