Manga My level up is strange! ~ Reincarnation of a great Man in a Different World

Zarmen, an up and coming adventurer, had chosen to retire from the life of exploration and, as a way to lose his virginity, splurged on a luxurious brothel. There he encountered the most beautiful woman he had ever laid eyes on. With her gracious hospitality, Zarmen enjoyed the experience of his first sexual encounter, yet at that moment his ears caught a mysterious message. "I have confirmed my implantation," followed by an announcement of "Level Up!"
“Could it be possible to gain strength from 'seeding'?” he thought. Soon enough, an interdimensional fantasy was born in the mind of Zarmen, a man who had been stuck at level 1 for many years, as he was now able to level up through snexx!