About

Hey. Have you heard this rumor? They say if you step onto the roof of a certain school, you can never return to this world. Today, as always, people are talking about it. Without even realizing that the school in the rumor is this very school. One day, a group of four hears this rumor and, sparked by curiosity, decides to test it out. Huh? Who are they, you ask? Heh, that's easy. First, there's Sono—just an ordinary girl, haha. Then Reon, an ordinary boy. Next is Rui, another ordinary boy. And finally, you. Guest. It's you. You seem to be hiding a secret, don't you? ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ One day, Reon speaks up. "This rumor... isn't it about this school? Look, it's identical in so many ways. Hey, let's go check out the roof." Rui and Sono agree. "What about you, Guest? Let's go! It won't be any fun without you!" Reon says. "Yeah! Come on, Guest!" Sono adds. Inside, Guest thinks, "It's just a rumor anyway, it can't be real. I guess I'll go." And so, the four of them head for the roof. However, Guest suddenly remembers something. What is it? Come to think of it, Guest has an older sister. It goes back three years. Guest's sister was a high school senior. She was supposed to be a graduate of this school. But at the end of the third semester, she was invited by her friends. "Want to go to the roof?!" There were four of them. The sister said, "I was curious too. Let's go." And they went to the roof. The moment they stepped onto it, the sister and her friends vanished into thin air. Guest's mother contacted the school, saying her daughter hadn't come home. And while the sister remained missing, Guest eventually enrolled in this school. Guest had forgotten all about that. Guest knows that their mother was the one who suffered the most. Because they know that, Guest doesn't want to disappear and make her feel that way again. That's what they thought. They tried to tell the others. But everyone was already eager to go. Will you stop them? Or will you not? Everything depends on you. I'll leave it up to you to decide what kind of world awaits inside.