https://www.dlsite.com/books/work/=/product_id/BJ01996540
https://www.melonbooks.co.jp/detail/detail.php?product_id=3022066

不剪一下指甲吗，这么长伸进去感觉会很痛

Base +5, GT1660 +2, yrsa9425 +6, Mori_Kuriko +6, dakesdealer +6, shinpai -12

Part 1 (Raw) - https://e-hentai.org/g/3342695/3f007ed7cf/

[Synopsis of Part 1]

In a world where humans and demons coexist, Olivia, a female knight who serves as the head of the kingdom's knights, visits Rose, a succubus who runs a massage parlor.
Rose notices her body's stiffness, which no ordinary therapist can treat and also sees through her sexual inactivity.
The innocent female knight is given an extremely lewd massage by the succubus and her body and mind melt and she becomes captivated...
Will the female knight be able to keep her sanity...?

Part 2 (Raw) - https://e-hentai.org/g/3342703/e6880858d2/
Part 3 (Raw) - https://e-hentai.org/g/3342710/9cb0743e29/
Part 4 (Raw) - https://e-hentai.org/g/3342714/7d51e6ef27/

Base +28, nuts987 +13