Kazuki Amamiya’s Haibara’s Teenage New Game+ (Haibara-kun no Tsuyokute Seishun New Game) light novel series will receive a new anime adaptation, according to the Hobby Japan Bunk imprint’s X (formerly Twitter) account. More details about the Haibara’s Teenage New Game+ anime are coming at a later date.
Hobby Japan shipped the first volume of Haibara’s Teenage New Game+ in December 2021. A full-color vertical comic adaptation by Misaomaru launched in June 2023. The story of the novel series enters its final arc with the ninth volume, which releases on July 1.
Lastly, J-Novel Club publishes the series in English and describes the story:
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!
 light novel series will receive a new anime.){kind=link}