© Kazuki Amemiya, Hobby Japan / “Haibara-kun’s Strong and Youthful New Game” Production Committee
Back in December 2024, we talked about how it was getting close to the end for the Haibara-kun no Tsuyokute Seishun New Game light novel as it concluded with the ninth volume. The series is localized as Haibara’s Teenage New Game+ and comes from writer Kazuki Amamiya and artist Gin, it also has a manga adaptation by artist Misaomaru, which began in 2023.
We learned in June when the HJ Bunko social media revealed that an anime adaptation is in the works with an April 2nd, 2026, premiere date. Now, the production has brought out the first preview of the 4th episode ahead of its April 23rd, 2026, debut.
The series has set Misuzu Hoshino as the director working from the series composition by Keiichi Ochi. Hiromi Ono is handling the character designs with Studio Comet on the animation production.
The Japanese cast includes:
- Kanon Takao as Hikari Hoshimiya
- Yuto Uemura as Natsuki Haibara
- Kanna Nakamura as Miori Motomiya
- Aya Yamane as Uta Sakura
- Sayumi Suzushiro as Yuino Nanase
- Ryōta Suzuki as Tatsuya Nagiura
- Tomohiro Ōno as Reita Shiratori
- Aimi as Serika Hondo
Aimi Maeshima is performing the opening song “Fly Again!!,” while the ending theme song is “Dramatic Tohiko” as performed by Aimi.
The series made its debut in December 2021, and the ninth and final volume was just released with a July 1st, 2025, release date in Japan. The light novels are being released in English through J-Novel Club.
Check out the official site and Twitter.
Plot Concept: 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!
Previous promos and visuals:
© Kazuki Amemiya, Hobby Japan / “Haibara-kun’s Strong and Youthful New Game” Production Committee
© Kazuki Amemiya, Hobby Japan / “Haibara-kun’s Strong and Youthful New Game” Production Committee
Chris Beveridge
http://www.fandompost.com
Chris has been writing about anime, manga, movies and comics for well on twenty years now. He began AnimeOnDVD.com back in 1998 and has covered nearly every anime release that’s come out in the US ever since.
He likes to write a lot, as you can see.


