Shizumeru Rakuen

Two college girls committed suicide by throwing themselves onto the isolated island of Rakubijima in the Seto Inland Sea at the end of summer. Why did they choose to die? What happened during their "last day" on the island? What is the "answer" you will give after tracing the memories of the two girls and learning the truth and the end of the story......? [Translated from Steam]

At the end of one summer, two female college students tried to commit suicide on Rakubijima, an isolated island in the Seto Inland Sea. Why did they choose their own death? What happened in the "last day" they spent on the island? What is the "answer" you will give after tracing the memories of the two girls and knowing the truth and the ending...?