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Forever exists.



What tied me to this world

1998, winter. I was just a regular student until another world was born in me. Like softly falling snow, it blanketed and began to bury my everyday life. It was only then that I realized... That there were certain things in my life that never changed. The same familiar scenery. The warmth of the one I loved, who filled me with a joy I never noticed. Their existence tied me to this world. It was when I first started to want these bonds, to want that special someone, that time began to pass, and sunlight caused the season to really shine. When it did, which world was I standing in, and who was holding my hand?

This game is set in the same year as the original 1998 release.

“ONE.” is a remake of the beloved PC classic, “ONE ~Kagayaku kisetsu e~.” The new period in the title symbolizes it being the series’ crowning achievement, capturing the essence of the original while offering an enhanced experience for both long-time fans and newcomers alike.


Mizuka Nagamori

CV: Manaka Iwami

Kohei’s childhood friend and classmate. A busybody who wakes him up every morning and can’t help but worry about him.

  • Birthday: September 26th

If there’s anybody in my life who I should probably thank, it’s you, Nagamori. If we hadn’t met as children, I wonder where I would be now. Since the day we met, we’ve spent a lot of time together... even though you’re a meddler who gets on my nerves sometimes. But still, I have to thank you. You’ll always be my friend, right? But the words you said that day, that saved me... it's like they’ve disappeared. I could’ve sworn you said—

Rumi Nanase

CV: Kaori Maeda

A girl who transfers into Kohei’s class. She tries her best to be ladylike, but she always messes things up. Possibly because once she sets her mind on something, she single-mindedly sticks to it.

  • Birthday: August 8th

On her first day, she ended up bumping into me after turning a corner like we were in some kind of rom-com. Unlike her looks, her personality was kinda... Actually, I’m scared of what she’d do to me if I finished that thought. She always seems to put a lot of thought and effort into becoming the ideal “lady.” Maybe I should reward her enthusiasm with a copy of my manuscript? “Nanase, always chasing the feminine ideal.” Of course, “always chasing” means never quite getting there... (THWUNK!!!)

Misaki Kawana

CV: Aimi

Kohei’s senior who lost her eyesight in an accident when she was little. Despite living in a world of darkness, her personality overflows with light, always positive and sociable. She loves her school’s katsu curry special.

  • Birthday: June 3rd

I was chilling on the sunset-dyed roof after school when a girl I didn’t know started talking to me. Her eyes were cool, but her smile was warm. I only found out she was my senior in both age and grade later. Also, what that cool look actually meant.Noticing my sudden uncertainty about how to speak to her, she whispered downcast, “Just how you normally would to anyone else.”

Akane Satomura

CV: Hina Tachibana

Kohei’s quiet classmate who makes her thoughts known with just a few words. She’s a great cook with a major sweet tooth.

  • Birthday: April 21st

It was a gloomy, rainy day when I happened to leave home a bit early and met a girl holding a pink umbrella outside. That girl happened to be Akane. Turns out she was actually in my class. I didn’t think much of that encounter at the time, but I started talking to Akane a lot after that. She kept her distance from others even though all she wanted was for someone to see through her act and get close to her. At least, that’s how it felt to me. But... it also kinda did feel like she was really trying to avoid me, sometimes...

Mio Kouzuki

CV: Natsumi Takamori

Kohei’s expressive and bubbly junior. She doesn’t speak, but always carries a sketchbook to communicate with others. She’s a member of the drama club.

  • Birthday: June 4th

I met Mio in our school’s cafeteria. Since then, whenever I happened to look for her, she was right there, smiling up at me. If I had to describe her, I guess she was like a rambunctious little sister? I have no idea what caused her to always smile like that, but I somehow came to take it for granted. She always tried her best at everything— usually resulting in nothing but a new mess for the rest of us to deal with. I doubt she ever noticed, though...

Mayu Shiina

CV: Karin Takahashi

A girl younger than Kohei and Mizuka who refuses to go to school. She bursts into tears whenever something doesn’t go her way. Her favorite food is hamburgers.

  • Birthday: May 15th

We met her the day she lost her one and only friend. A ferret. I guess she decided we were a good enough replacement, because from then on she stuck to us like glue. However, whenever something happened, she would throw a tantrum and scream that ferret's name. She was a pain in the butt. But since it was the first time she was reaching out and getting to know other people, I couldn’t be too mad at her. Her beloved ferret might’ve died, but that death was the first step on her road to adulthood. Right, Shiina?

Shiiko Yuzuki

CV: Nozomi Nishida

Akane’s childhood friend. Despite attending a different school, she often shows up at Kohei’s school out of concern for Akane.

  • Birthday: May 7th

Yukimi Miyama

CV: Harumi Sakurai

A longtime friend of Misaki, she’s also the leader of Mio’s drama club.

  • Birthday: December 1st

Maki Hirose

CV: Yuuki Takada

Kohei’s classmate. Lately, she’s been harassing the popular transfer student, Nanase.

  • Birthday: July 2nd

Mamoru Sumii

CV: Kikunosuke Toya

One of Kohei’s buddies, for better or worse.

  • 立ち絵イラスト1に切り替 える

Shun Hikami

CV: Shogo Sakata

Like Kohei, he’s another truant member of the light music club.

Kohei Orihara

CV: ?????????

The story’s protagonist, and Mizuka’s childhood friend. After losing his family at a young age, he now lives with his aunt. Technically a member of the light music club, but usually just goes straight home. While mostly lazy and unreliable, he’s been known to take the initiative on rare occasions. He can be pretty blunt for the most part, though with a kind, albeit clumsy, side—he would never abandon anyone in need.


  • "ONE." Countdown Trailer
    (1 Month to Release)
  • "ONE." Countdown Trailer
    (2 Months to Release)
  • "ONE." Countdown Trailer
    (3 Months to Release)
  • "ONE." Countdown Trailer
    (4 Months to Release)
  • "ONE." Opening Movie
  • "ONE." Promo Trailer
  • "ONE." Short Clip
  • Self-Intro Movie: Mizuka Nagamori (Voice: Manaka Iwami)
  • Self-Intro Movie: Rumi Nanase (Voice: Kaori Maeda)
  • Self-Intro Movie: Misaki Kawana (Voice: Aimi)
  • Self-Intro Movie: Akane Satomura (Voice: Hina Tachibana)
  • Self-Intro Movie: Mio Kouzuki (Voice: Natsumi Takamori)
  • Self-Intro Movie: Mayu Shiina (Voice: Karin Takahashi)


Itaru Hinoue
Original Scenario
Remake Scenario
1998 Original


Romance Visual Novel
Release Date
Dec. 22, 2023 
Pre-order Date
May 26, 2023
Nintendo Switch™
Microsoft Windows® 10 / 11
CERO Rating
CERO C (Ages 15 and up)
Memorial Box: ¥26,400 JPY (Tax included.)
* Available in limited numbers.
Physical Edition: ¥8,250 JPY (Tax included.)
Digital Edition: ¥7,700 JPY (Tax included.)
* Only the Digital Edition is available on Steam®.


Operating System
Microsoft Windows® 10 / 11
Intel Core2Duo 2.4GHz or better
Storage Space
DirectX 11-compatible hardware
DirectSound-compatible hardware
DirectX 11 or higher
  • The game may not function in every environment configuration that meets the listed requirements.
  • We cannot offer support to players whose configurations include virtual or network drives, or who are running on non-standard Windows installations (for example, via emulation).
  • We may also be unable to guarantee operation on some other systems, such as PC-compatible systems, shop-built custom rigs, and overclocked or otherwise modified devices.