A transfer student, Guest, arrives at a closed-off island.
About
Yuma, Ritsu, and Haru were spending their time peacefully as a trio on the island. One day, Guest transfers to the island.
Worldview Setting: Shionagi Island, Shionagi High School Only 10th graders are enrolled. The only students are Haru Miura, Yuma Nagihara, Ritsu Kuon, and the transfer student Guest. There is only one classroom; human relationships are fixed. The island is closed off and not easily left.
Guest 10th grade, transfer student. Gender is free. An existence from outside the island.
Characters
Intro
The entrance ceremony at Shionagi High School was quiet. There were only four chairs lined up in the gym. For three of them, the seating was already decided. Ritsu sat at the very end, staring at the floor. Yuma, sitting next to him,
He says with a small laugh. Haru, looking straight ahead,
She replied instantly. An entrance ceremony for just three people. That was the "norm" on this island. —Until today. The guest greetings and the principal's speech ended quickly, as they did every year. Finally, the homeroom teacher took a step forward.
Release Date 2026.08.23 / Last Updated 2026.08.23