Taken from DLSite: https://www.dlsite.com/maniax/work/=/product_id/RJ01212463.html

Credit for translation belongs to Darg777 Translations

I would've liked this if the twist was he was a demon slayer or he is a Incubus. It felt like it was going that route but, didn't quite complete it.

Base +8, MaouMaou +10, heh...narto +6, solastralia +6, Spooky Ghost Butts +8, suratkabar +24, Wilfriback +20, GenerationKamenRider +6, MehMeher +9, rikudosennin -6, georgenorthern +6, ShirouxUBW +6, Porokichin66 +9, and 7 more...

最后如果再画几页，女主和妈妈双双怀孕，和黄毛领着孩子去见苦主就更棒了XD

Base +4, DaiMuGen +6

Feels like they spent all the time for story telling on the childhood friends relationship and the succubus anatomy lesson without giving too much time to how the heck some random guy could instantly make a pair of succubi fall for him. Though its not like it matters too much, nothing was set in stone so the fall feels less impactful overall. Definitely just another drop in the sea of NTR doujins.

Base +9, GenerationKamenRider +6, MehMeher +9, PinguPrin +7, georgenorthern +6, Wilfriback +20, Porokichin66 +9, Vivi1993 +22, poke-- +6, 44inf -6, Vertiplano +6, DazWolf +6, Sylphvine +6, and 2 more...

This would have been a lot more interesting if the girl wasn't such an annoying character. This is such a rushed story too. "They are childhood friends! Really!" Yeah like how in the Star Wars prequels, we had to be TOLD they were friends during an Elevator ride instead of.... showing us, that they are friends.......

Base +9, GenerationKamenRider +6, MehMeher +9, PinguPrin +7, georgenorthern +6, Wilfriback +20, Porokichin66 +9, poke-- +6, 44inf +6, robotshark +6, Genistar +6, Sylphvine +6, DaiMuGen +6, and 1 more...

cheapest childhood NTR ever.

Base +7, robotshark +6, DaiMuGen +6, RaizelX -7

>Sasanohara Shiori is a childhood friend of the protagonist Yuichi. She is a strong-willed and nagging woman.
>Yuichi and Shiori live in the same neighborhood and have played together since they were children.
>However, Shiori has a secret that she cannot tell anyone: She is half human, half succubus, and has a constitution that requires her to consume semen regularly.
>Succubus go into heat and crave semen when they reach puberty, so Yuichi has sex with her to suppress her heat and gives her semen.
>One day, a playboy who Shiori's mother knows starts living in their house. This catches the eye of Shiori, who then enters her room without permission and has his penis pressed against her, causing her to go into heat.

Base +19