Mannen D-Rank No Chuunen Boukensha, Yotta Ikioi De Densetsu No Ken Wo Hikkonuku

Story:

Lucas' life is not a gift at all. By the time he was thirty-five, a series of failures had so aged and crippled him that he could no longer make the adventures he had before. But one day he pulls a magic sword out of the stone that says he is destined to be a hero. Becoming as young as he used to be, Lucas must use the power of the sword to conquer evil and find a great harem. Ahead of the questions: Lucas is in the modern world from the beginning. All he does is pass wishful thinking off.