Zombie World de Harem o Tsukurou!

From Seven Seas:
Kosaka Kotaro was living his best life as a gamer otaku…until the zombie apocalypse hit. Now the streets are crawling with the undead and his biggest regret? Dying a virgin. Then he rescues the gorgeous Kana, who’s just been bitten and doesn’t want to turn into a zombie before losing her virginity. Kotaro’s happy to help and after their steamy encounter, something incredible happens: her bite begins to fade. Could the cure be inside Kotaro? Kana’s not taking any chances. She’s sticking close, keeping him busy and making sure the “treatments” keep coming.