Island

is a Japanese visual novel developed by Front Wing and published by Prototype. It was released on April 28, 2016 for Windows. It was later ported to the PlayStation Vita and PlayStation 4. A manga adaptation was serialized in Simsum Media's Cosplay Channel magazine from April 21 to July 11, 2016. An anime television series adaptation by Feel premiered on July 1, 2018.

Plot
Urashima is an island far from the mainland. The people who live there lead carefree lives. But five years ago, the island's three great families suffered a series of misfortunes, and succumbed to suspicion. The people of the island cut off all contact with the mainland, and began a slow decline. One day, a young man named Setsuna washes ashore claiming to be a time-traveler and suffering from amnesia. He meets three local girls: Sara, Rinne, and Karen. Their meeting will change the course of the island's fate.

Official

 * http://never-island.com/