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Two boys find an extremely realistic female doll, take it to their secret hideout,
and have some fun with its body.
Unpack the game then replace the data file
DLsite JPN: https://www.dlsite.com/maniax/work/=/product_id/RJ325710.html
[Story]
A dungeon gate suddenly appeared in the schoolyard of the school. The dungeon gate was connected to a
dungeon controlled by Succubus, and only students could enter.
The strongest students of the school selected...