https://www.dlsite.com/maniax/work/=/product_id/RJ277240.html

Well that's a really unique curse. Quite the bad end as well.

Base +9, adian5824 +2, yayo78 +11, bladesniper +11, GGS +10, Clamstatic +6

可惜完全碎成渣了，不然应该是个不错的艺术品

Base +6, linda3323 +6, giligiliai123sb +6, chenwennan +6, wmlsk +8

哀れなカーラ

Base +4

I Love Succubus, and Bad Ends.
But why only sperm for the curse, it would be so awesome if she had sucked out all the life force of the men to soothe her curse, but it helps only for a short time, and so her levels continue to decrease even though she has all the life force from their prey in her, and then comes to petrification and amputate until then at the end the succubus comes and eats all the life force that she hat now from all the men, and then the curse killed her.

Unfortunately I can not read Japanese, so I do not know exactly what happens, it can only be derived from the pictures.
so please translate it into english

Base +6, protonstar +6

I kind of excepted another female hero to come by in the end, and the cycle continues.

Base +6

@Wormac:
The curse, as the succubus explained when she came back, was just a nuisance thing that would have petrified the heroine body for a month and then she would be return to normal afterward, and that it was the going out fucking 1000 guys that allow the succubus soul that was linked to the heroine to be able to utilize the power of the sperm to revive herself. The succubus pretended to persuade the heroine to join demon race with listing the terrible things the other human has done to her only to BAAKA her when she fell for it.

Base +9, Marisa Kirisame +8, chicagotypewriter +8

god her crying face is the sexiest holy shit

Base +8, aubrie paterson +6

Now I come to comments section for good ol' plot discussion time after fapping to this.
Though it really makes me thinking why the heroine fell for it.
Maybe this is what is called 'humanity weakness'.
Sorry for my bad English.

Base +7