Popotan is a Japanese adult visual novel developed by Petit Ferret with character designs by Akio Watanabe under the alias Poyoyon Rock. Gameplay in Popotan follows a semi-predetermined plot; major events remain the same, but personal storylines can diverge from the player's choices. The game focuses on protagonist Chris, a drifter who meets three girls and their maid in a mansion near the ruins of Tokyo in the distant future.

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