"Half-Baked Cheat: Celibate Harem Below Hero Class"

A salaryman named Sakaki Ryo, 37 years old and single, is summoned to another world through the typical hero summoning ritual. The temple that summoned him presents an incredibly appealing offer: he can become younger, gain cheat abilities to dominate everything, and enjoy a lucrative hero's life with guaranteed monthly salary. With slavery and brothels existing in this world, he was delighted, thinking this would be a straight path to a nocturnal harem life. But due to a mistake, his abilities turn out to be mediocre, and worse still, he must live an ascetic life like a monk or he'll lose even those abilities. No meat, no alcohol, and absolutely no intimate relations with girls. Despite these restrictions, Ryo is expected to fulfill his role as a hero, so he decides to fight by recruiting slave girls as companions. But then he's pestered by a dark elf little girl, pursued by a blonde erotic maid, insulted by a raven-haired young lady, and feared by a white bear beautiful girl. Can he withstand the charms of these beautiful girls? Despite this premise, there actually aren't many harem elements up until around episodes 12-13...