Akira Shiroyanagi, a 16-year-old high school student with excellent grades and a hobby of playing games, is bored with his normal daily life.

Kei wakes up in a mysterious hospital-like facility, and the magician-like woman, Metsune, appears in a venue where only people in similar circumstances are gathered.

[4][5][6] In October 2024, Miyako announced that the manga would enter on hiatus due to health and personal issues since the start of the year, stating as well that the series is approaching its end.

[36] The series is animated by SynergySP and Vega Entertainment and directed by Nobuyoshi Arai with Meigo Naito serving as chief director, Touko Machida handling series composition, Studio A-Cat producing the CG animation, and Tomokatsu Nagasaku and Ikuo Yamamoto handling character designs.

[43] Battle Game in 5 Seconds was nominated for the 67th Shogakukan Manga Award in the shōnen category in 2021.