I've seen a few of these enslaved and raped adventurer girls images with this Kill Time Communication logo. Are they part of a set? Do we have a pool for them?

They're apparently from this series:

http://ktcom.jp/books/dl/dl162
http://ktcom.jp/database/search.cgi?key=%83s%83%93%83%60

This one is the cover of volume 12: http://ktcom.jp/books/dl/dl240

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