Ore no Level Up ga Okashii! - Dekiru Otoko no Isekai Tensei

Zarmen, an adventurer unable to level up, resolves to retire from his adventuring career. Additionally, to mark the end of his virginity, he chooses to spend all the savings he had carefully accumulated since his reincarnation at an upscale brothel. The woman who greets him is the most exquisite he has ever encountered. With her warm hospitality, Zarmen relishes his first experience, but at that moment, he hears a strange announcement in his ears...