Original Title: 元ブラコン妹と挑む異世界迷宮
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Main Tags: Younger Sister, Incest, RPG, Costumes.
*Important note*: The 1.0 version of the game I downloaded from somewhere else has a gamebreaking bug that doesn't allow you to continue past the 19th floor, The 1.0.3 version of the game is necessary. If anyone has a link for that please share here.
Interesting battle mechanics, even managed to make me laugh a few times.