Official:
http://www.eroit.net/ikenaikodukuri3/
Getchu:
http://www.getchu.com/soft.phtml?id=881296
VNDB:
https://vndb.org/v18812
VNDB Description:
Kouji witnesses his niece Yuuna having sex with his son Kouichi. The two cousins are in love. Kouji however, wants Yuuna for himself. He forces himself on her again and again, hoping to make her pregnant. Will she remain faithful to his son Kouichi or will she give in to the pleasure that her uncle gives her?

Rooting for the uncle. :D

Base +6, Testamentt +3, rjimenez666 +5, Gitami +11

DLsite - http://www.dlsite.com/pro/work/=/product_id/VJ009988.html

Erogamescape - http://linkshrink.net/7hOSLu

DMM - http://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1893apc11277/

Gyutto - http://gyutto.com/i/item160329

Holyseal - http://shink.me/iMKR4

Comshop - http://www.comshop.ne.jp/items/item-287124.html

Toranoana - https://www.toranoana.jp/mailorder/article/21/0006/56/42/210006564217.html

Melonbooks - https://www.melonbooks.co.jp/detail/detail.php?product_id=145402

Melonbooks DL - http://www.melonbooks.com/index.php?main_page=product_info&products_id=IT0000186073

Amazon - http://www.amazon.co.jp/gp/product/B019DKPZ3E

Artist - Kuraki Hiro (椋木尋)

Netori game.

Base +6, MSimm1 +37