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CinemaOSAnime · 2026 · TV · 12 eps
Haibara's Teenage New Game+
66%(25,560)RomanceSlice of Life

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! (Source: J-Novel Club) Note: The first 4 episodes had an advance screening on March 15th, 2026. The start date reflects the start of the regular series broadcasting.

StudioStudio Comet

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Haibara's Teenage New Game+
Official trailer

Haibara's Teenage New Game+

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Format
TV
Episodes
12
Status
Finished
Season
Spring 2026
Duration
24 min
Source
Light novel

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Episodes

12 available
12 Episodes
The Gray Boy`s Plan for a Colorful Adolescence
Ep 16.5

The Gray Boy`s Plan for a Colorful Adolescence

Haibara Natsuki travels back in time and gets a second shot at a better high school experience.

Dreamlike Days
Ep 23.9

Dreamlike Days

Natsuki hangs out with his new friends on the weekend.

Perfect Behavior
Ep 37.4

Perfect Behavior

Natsuki begins working at a café, and he and his friends study for midterm exams.

If You Support Me
Ep 45.7

If You Support Me

Without Tatsuya, Natsuki’s once colorful adolescence slowly begins to darken.

I`ll Give You an Umbrella When You`re in the Rain
Ep 54.0

I`ll Give You an Umbrella When You`re in the Rain

Natsuki, Miori, Reita, and Hikari go on a double date.

Wish
Ep 69.8

Wish

Natsuki convinces Miori to accept his help and attends a festival with Uta.

Aiming for the Ultimate Summer
Ep 7

Aiming for the Ultimate Summer

Natsuki's friends plan an overnight trip, but Hikari may not be able to attend.

Your Dream and the Secret Relationship
Ep 8

Your Dream and the Secret Relationship

Natsuki supports Hikari as she prepares to confront her overbearing father.

The End of a Miraculous Summer
Ep 9

The End of a Miraculous Summer

Natsuki heads to the beach with his friends for the colorful summer experience he's always dreamed of.

Facade
Ep 10

Facade

Serika asks Natsuki to form a band with her.

Monochrome
Ep 11

Monochrome

Natsuki is forced to confront his own feelings when he's asked to write lyrics for his band.

To the Stars
Ep 12

To the Stars

On the day of the school festival, Natsuki performs with his band and expresses everything he's been feeling.

Voice cast

Characters

Natsuki Haibara
main

Natsuki Haibara

Hikari Hoshimiya
main

Hikari Hoshimiya

Miori Motomiya
supporting

Miori Motomiya

Uta Sakura
supporting

Uta Sakura

Yuino Nanase
supporting

Yuino Nanase

Tatsuya Nagiura
supporting

Tatsuya Nagiura

Reita Shiratori
supporting

Reita Shiratori

Serika Hondo
supporting

Serika Hondo

Same universe

Related anime

Haibara’s Teenage New Game+
ADAPTATION

Haibara’s Teenage New Game+

novel

Haibara-kun no Tsuyokute Seishun New Game
ALTERNATIVE

Haibara-kun no Tsuyokute Seishun New Game

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