>You can buy a THICCENING agent for your paint from a local home improvement store. Most THICCENING agents for latex paint are made with water-soluble hydroxyethyl cellulose which works well with the latex.
(Get you paint THICC!)[https://www.wikihow.com/Thicken-Paint]
The artists pixiv https://www.pixiv.net/member.php?id=2345928
Tbh Nijigasaki works perfectly fine as a standalone too, it has no references to the earlier animes. It's very roughly based on the mobile game story. Worth watching it all tho.
The picture from a doujin but it's in Japanese
The name is Monster Girl Encyclopedia World Guide II
But I got where the English translation as mobile app
IOS: NOT AVAILABLE AT THE MOMENT
The name is Monster Girl Encyclopedia World Guide I
But I got where the English translation is here
Yep, It's the Official Artbook released in Japan last December 14. Here's the Amazon JP link for it that sells for 2970 Yen (~$30).