The mangaka and scenarist behind To Love Ru and To Love Ru darkness are baiting experts, in a billion (or almost) volumes, the male hero didn’t get officially in any dating relation with any of his harem girls. At least, there’s hentai, even if only few mangakas manage to simply draw close to Kentaro Yabuki’s talent.
In this share, Yuuki and Kotegawa (one of the early harem girls) are dating, and the point of focus is how Kotegawa got addicted to giving head and drinking semen (despite initially hating it), with still vaginal sex between the blowjobs as drinking cum drove her mad with lust. Simple as that. As long as the art is to your liking (it’s relatively mediocre coming from Aoki Kanji, to be honest), it might be worth a look
Release credits are for Brandon, VHRP and Orla, from Hennojin, thank you!