Test Island

Test Island (テスト島, Tesuto Shima) is an exclusive map only accessible by using cheese method which is meant to be for beta test only.

Overview
This island can only be accessed by teleporting with its ID and set coordinates to a small island for test purposes.

The island consist of Goddess Ilias, Seraph Eden, two adult Promesteins, Tamamo, Granberia, Erubetie, Kitsune and Alice unsealed version.

Features
Talking to Goddess Ilias will result in a new game plus like similar to Reaper’s NG+ option after beating the game.

Difference will be that your companions and key items will be kept instead of a do over. This loophole can technically make the player play with Goddess Ilias and Alice at the same party, but there will be some bugs that may cause some events to not activate, or jumbled up making the other events never happened.

Example of using Test Island route: