Chapter titles:
1. Unwithering Flower (Kareranai Hana)
2. Doubled Helixed Succubus (Nijuurasen no Inma)
3. Devil's Whisper (Akuma no Sasayaki)
4. Forever in That Form (Sono Sugata wo Eien ni)

Too munch rape on this one. Basically it's a hentai anthology. The first two chapters are worth to read even if in the second one have d*cks and they mostly mention it than the clit but hey it's a hentai after all.