>>128592
Seems you found a little goldmine for the matricide theme and this guy is an expert on the subject. You should also check out:
https://www.pixiv.net/en/artworks/127129575

https://www.pixiv.net/en/artworks/116395861

https://www.pixiv.net/en/artworks/116872618

https://www.pixiv.net/en/artworks/138825379 all parts

He also has a doujin about a mother and son who went to live with an incest tribe that is targeted by a cannibal tribe
First part
https://www.dlsite.com/maniax/work/=/product_id/RJ01296367.html

https://e-hentai.org/g/3136766/7d5dac8dbd/

Guy also has a fanbox and it seems he is taking commisions on this subject