The second part of Nanbaka. The prisoners and their guards continue their comfortable lives at Nanba Prison. However, from the shadows emerges a new threat: Enki Gokuu, a person from Samon's past, who has mysterious goals of his own.

Nanba is the world's most formidable prison, built to incarcerate criminals who are too slippery to stay in ordinary confinement. The four inmates who occupy Cell 13 are particularly cunning on that behalf, having escaped every other prison with a perfect success rate. There is Juugo, a specialist in locks who has spent the majority of his life in prison; Uno, a gambler with great intuition; Nico, an otaku whose body reacts strangely to drugs; and Rock, a bruiser with a love for food. The daily shenanigans of the four prisoners always cause trouble for the building supervisor, Hajime Sugoroku, who desperately tries to prevent them from breaking out of Nanba. Nanbaka follows the comedic, sparkle-filled exploits of these prisoners and their guards. From three square meals a day to sports festivals, prison life in Nanba isn't actually that bad—and it is the closest these four have to a home.

​It has been a year since Aoba Suzukaze started working at the Eagle Jump game company. In that time, she and her eccentric coworkers in the character design department have worked hard to release the company's newest game: Fairies Story 3. With their latest title now complete, a new project must begin—starting with a contest to decide the character designs for the upcoming game. Through hard work, dedication, and some guidance from the previous character designer, Kou Yagami, Aoba wins the contest and begins her new role as lead character designer. However, her new job is not an easy one. In addition to having extra work and longer hours, Aoba questions whether she is the right fit for the job. As she overcomes her inexperience with the help of her friends and coworkers, Aoba is willing to face any challenge to make Eagle Jump's newest creation, a cutesy game called Peco.

Since childhood, Aoba Suzukaze has loved the Fairies Story game series, particularly the character designs. So when she graduates from high school, it is no surprise that she applies to work at Eagle Jump, the company responsible for making her favorite video game. On her first day, she is excited to learn that she will be working on a new installment to the series: Fairies Story 3—and even more so under Kou Yagami, the lead character designer. In their department are people who share the same passion for games. There is Yun Iijima, whose specialty is designing monsters; the shy Hifumi Takimoto, who prefers to communicate through instant messaging; Hajime Shinoda, an animation team member with an impressive figurine collection; Rin Tooyama, the orderly art director; Shizuku Hazuki, the game director who brings her cat to work; and Umiko Ahagon, the short-tempered head programmer. New Game! follows Aoba and the others on their adventure through the ups and downs of game making, from making the perfect character design to fixing all the errors that will inevitably accumulate in the process.