The anime is based on the novel series by Kazuki Amamiya.
The popular novel series Haibara’s Teenage New Game+, written by Kazuki Amamiya and illustrated by Gin is getting an anime adaptation. Unfortunately, no details about the release window or production has been revealed yet. The voice cast of the series also remains unknown. Further details will likely be released in the coming months.
Haibara’s Teenager New Game+ anime details
As mentioned earlier, other than the production confirmation, nothing about the project has been revealed yet. The official X (formerly Twitter) account of HJ Bunko announced on 1 July, 2025, that the reincarnation romance novel is getting an anime adaptation. Keep an eye on our site as we will update you on more details as soon as they come out.
The Haibara’s Teenage New Game+ novel is written by Kazuki Amamiya and illustrated by Gin. The series also has a manga adaptation by Misimaru. Hobby Japan’s HJ Bunko light novel imprint publishes the novel. J Novel Club releases the novel series in English and describes the story as:
We all have embarrassing memories or deep regrets from high school, right? Socially anxious college senior Natsuki Haibara sure does. When he thinks back on that time of his life, all he has are fleeting fantasies of a happy adolescence that could have been. Imagine his bewilderment and surprise, then, when he inexplicably finds himself seven years in the past—one month before his first year of high school! Can Haibara avoid his previous mistakes, make his way to the top of the school social pyramid, and end up with the girl of his dreams? Or will he be forced to relive three years of solitude as the most hated guy in school? He’ll need all the help he can get in order to succeed, from a workout regimen to online how-to guides, a childhood friend, and plenty of sheer willpower. Watch as Haibara takes a second shot at his teenage years!
